So in other words: It no longer requires any malice to pay this way, as it's just a cultural norm in the business world.
By the way, it's also a cultural norm in the US to complain about the lack of generosity among those richer than you, and yet spend almost 100% of your salary helping yourself, when you could just as easily spend it on those less fortunate. Charitable donation is trivially easy, even easier than raising the minimum wage at your company. Yet how many people in these comments are highly-paid millennials who would rather buy the newest iPhone than donate that money to those in need?
If we want to understand the psychology of those at the "top," we need only look no further than ourselves. Unless you're at the bottom, you're also at the top as far as people less fortunate than you are concerned.