For example, I've noticed a ramping up lately of propaganda against those horrible people called "billionaires." I would call today's billionaires the early adopters of future living standards, assuming that we continue to have exponential economic growth.
I don't think this is a good example of the broader phenomenon you are describing. When people criticize the very wealthy, they're primarily making a criticism about relative, not absolute standards of living. I.e. "It is a sin to have so much when others have so little." I wouldn't say this is the only criticism, because I have seen, for example, criticisms of people owning mansions when they have small families (since it creates enormous upkeep costs and the unused rooms have basically no value except as a positional good). But that's the exception; I don't think anyone would consider owning a Maserati immoral (at least on grounds of wealth rather than environmentalism) if there weren't also people struggling to pay for basic necessities.
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