>(why do all billionaires seem devoid of ethics?)

The type of person at the top of a hierarchical system is always a direct reflection of its play rules. In late-stage internet capitalism you win by being the most unhinged and un-emphatic. Today's young adults grew up on twitter, 4chan, video game gambling and with influencers telling them that the only thing that matters is material wealth and status. This culture has moved more and more into the mainstream in the last decade.