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.

Another comment that's clearly coming from a place of envy, entirely framed about what billionaires deserve rather than having any sort of introspection.