Reminding to be Ethical...Changing Organizational Policies

Ethics, DEI, Sustainability, and AI are "hot" topics in almost all organizational leadership discussions. In many such discussions, we often hear that a good percent of employees unaware of the organizational policies, including the organizational ethics mandate. It is seen that the employees do complete some of these courses as a part of the joining formalities, but later on, checking them on a regular basis is missed due to other project priorities.  An unfortunate incident related to ethical behavior may then occur and provide an "unfortunate" alert to the organization and team. The alert sends ripples across the organization, and then there is a compulsory mandate to check these policies. Thinking of the ownership of this information and compliance to the policies, it's both- employees and organization.  

Organizational policies are changing across the board due to operational changes. Due to such changes, we see an increase in ethical dilemmas, and this clearly needs ways to ensure an end-to-end process is created and executed to avoid any untoward incidents that may damage the organization's credibility.

What should be a way, in your opinion, to build a robust process around understanding Ethics and related processes? 

I would like to hear your views.