Inequality isn't a big problem. Those who claim it is seem to think that the existence of really rich people causes the existence of really poor people. That is not the case.

It's natural that things are less equal now that we're not farmers or hunter-gatherers. Economies of scale will massively enrich those who take build them.

Sometimes it is claimed that inequality is a problem because the rich will control politics. But populism is surging and the rich seem to have a harder time controlling politics than ever, largely due to the disintegration of the print/tv media.

I don't think anyone says that really poor people are caused by the existence of really rich people. The argument, as I understand it, is that spreading the wealth of billionaires around would mean fewer really poor people.