Greed has certainly been a defining cornerstone of humans for a very long time, so I don't doubt these kinds of things have been happening behind closed doors f

Greed has certainly been a defining cornerstone of humans for a very long time, so I don't doubt these kinds of things have been happening behind closed doors for a very long time as well. The truth is that everyone has a price, and some people's price is much lower than others. I also think as leaders and people in positions of power see others commit moral transgressions and ethical breaches, some of those same leaders will say "what's the point"? Many of those leaders may start out as committing small ethical breaches, and they grow and grow until they've lost control of convinced themselves that its just "part of doing business".