Good ethics is about emotional connection in the workplace.

A piece of advice from Jordan Thomas, the ex Assistant Director of the Securities and Exchange Commission in the US (a place where they have to engender the "right" culture to prevent fraud and bribery):
" instill a sense of community in your workplace. After all, ethics is a natural outgrowth of a healthy working environment where employees have a sense of belonging and are concerned about the well-being of their colleagues, customers and the organisation as a whole...if employees are not emotionally and intellectually connected to their work, they are far more likely to engage in unethical behaviour because they are not constrained by the potential impact of their misconduct on others".

This is why business ethics has to start with the fair treatment of employees and where such employment practices as zero hours contracts (of benefit to the employer but not the employee) actually damage an organisation's prospects of ever engendering the right behaviours.