That's a misunderstanding of the original argument. It's not about billionairs "doing something bad". The claim is that the only way to become a billionaire is to benefit from an unfair economic system.

A lot of success-striving people are pretty grossed out by absurd levels of wealth inequality as well.

Sure, some folks are going to be fantastically wealthy, that's OK to a large extent.

But, we're on the precipice of trillionaire's existing in a country where literally half of the population is functionally illiterate (yes, that's the USA), where the middle class is dissolving, and where we are approaching a feudal level wealth inequality-- and all this stuff is accelerating.

I mean, I guess it's not that bad. We still have a democracy. It's not like we have billionaires re-arranging political power and public resources for their pleasure and benefit. Oh wait, we do!

So then if you're glad for it, what do you have to say about the straw man he presents? The sibling reply spells it out, but as a non-billionaire why are you willing to accept that argument?