Recent scandals involving Nestlé executive Laurent Freixe and AI startup Astronomer’s CEO Andy Byron, both of whom engaged in relationships with subordinates, highlight deeper ethical failures beyond personal misconduct. From South African boardrooms to global corporations, ethical lapses such as conflicts of interest, rule manipulation, and bullying consistently erode organisational culture. When senior leaders violate ethical norms, they damage reputations, fracture trust, and foster environments permeated by fear and uncertainty.

Employees, as a result, lose trust and respect for leadership, perceiving them as lacking integrity and moral authority. This erosion severely undermines psychological safety which is the shared belief that one can voice concerns or raise difficult topics without fear of punishment, humiliation, or retaliation. When individuals worry that their input will be ignored or weaponised against them, they choose silence over expression. Over time, this culture of silence weakens leadership credibility and blocks the surfacing of critical ethical challenges. Moreover, ethical lapses make employees feel unheard and unsupported, deepening disengagement and accelerating the breakdown of trust and morale within the organisation.

When misconduct is tolerated or ignored, it sends a clear message: integrity is optional and ethical boundaries are flexible. Ambiguity replaces clarity, and as uncertainty grows, openness gives way to fear. Employees hesitate to question decisions, flag unethical behaviour, or seek necessary clarity. This enforced silence can be far more damaging than the initial misconduct itself, allowing small issues to fester and escalate into systemic failures that compromise the organisation’s long-term viability.

The concept of psychological safety, introduced by organisational psychologist Amy Edmondson, revolves around the belief that interpersonal risks such as raising difficult topics, admitting mistakes, or offering dissenting views will not lead to embarrassment, punishment, or exclusion. In psychologically safe environments, employees are encouraged and empowered to share ideas, challenge leadership decisions constructively, and contribute authentically. Organisations that cultivate such safety reap benefits including greater innovation, enhanced transparency, and increased resilience in the face of change and adversity.

Beyond operational benefits, psychological safety directly impacts employee well-being. When individuals feel secure in expressing themselves, they experience reduced stress, greater job satisfaction, and a stronger sense of belonging and community at work. This emotional security fuels motivation, loyalty, and sustained engagement. Conversely, when psychological safety is absent, employees tend to self-censor, withdraw from collaboration, and disengage emotionally. This disengagement creates blind spots where ethical and operational issues can go unnoticed, unaddressed, and eventually cause significant harm.

Many organisations implement codes of conduct and whistleblowing systems intended to uphold ethical standards. While important, these mechanisms are often reactive rather than proactive solutions. Whistleblowing typically occurs only after trust in internal systems has deteriorated. Even with formal protections, whistleblowers frequently face retaliation, whether overt or subtle. This creates a paradox where silence often feels safer than honesty, perpetuating a culture where ethical blind spots remain unchallenged and unresolved.

The annual Psychological Safety Study conducted by the WPO Centre for Organisational Effectiveness revealed alarming trends in contemporary workplaces: rising workplace stress, declining employee engagement, and a marked decrease in perceptions of psychological safety. Shockingly, only 18% of employees rated their managers as excellent in creating safe and open work environments. These findings expose a significant leadership gap and underscore the urgent necessity of embedding psychological safety not merely as a cultural value but as a core ethical and strategic imperative.

Creating a psychologically safe culture does not equate to lowering expectations or sidestepping accountability. Rather, it means fostering an environment grounded in trust, clarity, and openness, where difficult conversations are welcomed and ethical concerns are addressed promptly. In such a culture, employees feel confident raising red flags and alerting leaders to emerging problems before they escalate into crises.

This willingness to raise concerns stems from trust, as articulated by Edgar Schein’s concept of the psychological contract, namely the unwritten, mutual expectations between employer and employee. Employees expect fair treatment, ethical leadership, respect, and support. In exchange, employers expect performance, adaptability, loyalty, and integrity. When this implicit contract is honoured, trust flourishes. When leaders ignore concerns, apply rules inconsistently, or act without accountability, the contract breaks down. As a result, psychological safety diminishes, employee engagement wanes, and workplace culture deteriorates into fear, secrecy, and disillusionment.

However, trust alone is insufficient to cultivate an ethical culture; courage is equally essential. Professor Deon Rossouw defines ethical courage as the willingness to act on moral convictions even when such actions entail personal risk or discomfort. This kind of courage flourishes only in environments where ethical behaviour is actively supported, encouraged, and rewarded. When employees believe the organisation will stand behind them for doing the right thing, they are far more likely to confront wrongdoing and uphold shared values.

In psychologically safe workplaces, difficult conversations are not avoided but expected. Questions like “Is this fair?” or “Does this reflect our values?” become part of everyday dialogue rather than being reserved solely for moments of crisis. Leaders in these environments respond to dissent with humility, view mistakes as learning opportunities, and use ethical principles as a compass to guide decisions and behaviour.

Importantly, psychological safety does not arise by chance or from one-off initiatives. It requires deliberate, sustained effort and commitment from leadership. Promoting openness in principle is insufficient; leaders must model transparency and ethical behaviour consistently. This means listening attentively without defensiveness, acknowledging their own mistakes openly, and demonstrating ethical conduct in all interactions. Most crucially, leaders must close the gap between the values an organisation proclaims and the behaviours it tolerates in practice. When values become mere slogans on office walls, organisational credibility erodes, and employees become less likely to raise concerns or challenge unethical behaviour.

The Nestlé and Astronomer cases starkly illustrate how ethical failures at the top send damaging signals throughout an organisation. When senior leaders face no consequences for misconduct, it suggests that ethical standards are flexible, particularly for those wielding power. This perception undermines organisational integrity and fosters cultures of cynicism, fear, and silence. Employees begin to question whether ethical rules apply equally to everyone or only to those without influence or authority.

Conversely, organisations that treat psychological safety as non-negotiable and apply ethical standards consistently across all levels of leadership build resilient, values-driven cultures. These environments proactively address misconduct early, empower employees to raise concerns without hesitation, and foster leadership credibility through principled action. Ethical leadership in such organisations transcends mere compliance checklists; it embodies lived values that cultivate enduring trust.

Ethical breakdowns rarely begin with headline-grabbing scandals. More often, they originate from small compromises, overlooked warning signs and inconsistent decision-making. Without a culture of openness, accountability, and psychological safety, these risks accumulate gradually until they become entrenched and difficult to resolve. Psychological safety provides a proactive mechanism where concerns are surfaced and resolved early, preventing the need for formal escalation or whistleblowing.

For integrity to thrive, psychological safety is not optional; it is essential. It empowers employees to express their perspectives candidly, supports organisational accountability, and transforms abstract ethical values into everyday practices. Leaders must continually ask themselves: Are we truly fostering psychological safety and rebuilding trust? Without this foundation, even the most robust ethical frameworks will eventually fail.

Lizette Hattingh is Senior Associate Ethics Subject Matter Expert at The Ethics Institute.