For example, Elon Musk has many many many times more wealth than I, and I don't care. Ditto Bill Gates, Mark Zuckerberg, and so on and on. I don't care about inequality -- I care about poverty and ending it.
Formulations like "the problem is no longer poverty but inequality" are a lot like the post-USSR formulations like "now that we have solved the production problem we need to solve the distribution problem". It's Marxism moving the goal posts as economic freedom delivers all the things that Marxists say they want. To argue that one should be given power to solve the problems that are already being solved one has to keep making yet other problems into bigger problems than they really are.