I think it's classic just world theory shit. The extreme unfairness of Capitalism is obvious, so how do Liberals cope with seeing some people live with access to any luxury they could dream of while others live in immiserating poverty? They do so by imagining that the wealthy are materially rich and spiritually poor, while the impoverished are materially poor but spiritually rich, thus creating a sort of balance that makes everything work out in the end. The same notions existed during Feudalism, where the jolly serf, with nothing, was contrasted with his lord, whose wealth so burdened him with its great responsibilities. I imagine that's part of why AOC had this to say after working in Niger with a USAID program:

She spent her junior year in the African nation of Niger, where she had an unusual reaction to poverty. She decided Niger’s struggling citizens had “a level of enjoyment” that “just does not exist in American life”.

It's a very condescending and paternalistic attitude which works to reinforce Capitalism through its suggestion that extremely obvious material unfairness is really not so bad. Of course, the rich can be miserable but I have a hard time imagining that Musk or Notch would be any happier if they were living in a tiny apartment instead of a huge mansion.