Some 20% of US billionaires grew up poor, or at least without well-off parents. 60+% were upper middle class or below. So, I think we can note that they've created enough value for the rest of us and deserve to keep the fraction of that value that they were able to negotiate.
What is the demographics breakdown on those statistics? How much is old vs new wealth vs generational wealth?
A lot has changed in the U.S. in the last 20-40 years.
Also I'm not really convinced that the existence of individuals with over a billion dollars in wealth is a net positive for society or really anyone except that individual.
Another comment that's clearly coming from a place of envy, entirely framed about what billionaires deserve rather than having any sort of introspection.