Not just their thinking.. after 9 years, they have policies, practices, rituals, incentives, etc (both written and unwritten) that supported those immoral/illeg

Not just their thinking.. after 9 years, they have policies, practices, rituals, incentives, etc (both written and unwritten) that supported those immoral/illegal decisions. And the employees aren't helpless either. If they don't like this new CEO, they can choose to withhold information, don't write things down that are no longer approved of, etc while their direct manager looks the other way. They can collectively undermine the CEO until he's completely ineffective and forced to leave. The culture is one of the hardest things to change inside of a company once it's established. It's self-reinforcing. So we have to wait a couple of years to see if he's successful. There's no guarantee he'll win just because he's at the top.