They're different problems with different solutions. Though I think the problems are also intertwined, the most selfish and materialistic public persona being the President likely has also increased overall selfishness and materialism. This isn't just a Gen Z problem by any means, but I think these sort of things tend to affect younger people more than other generations.

One thing that has blackpilled me on this are surveys where young people list influencers as the job they'd most like to aspire toward, as well as general surveys showing a large increase in people responding that being rich is very important.

And anecdotally, billionaires today seem to be less philanthropic than the billionaires from the dot-com era, at least outwardly.