> We stand on the brink of a world where some wealthy people will get more wealthy

Not to the degree you might originally think. Most of the wealth being captured today is hypothetical wealth (i.e. promises) to be delivered in a hypothetical future. Except we know that future will never come as the masses, as you point out, have almost nothing, and increasing nothing, to offer to make good on those promises. In other words, it is just a piece of paper with IOU written on it, not real wealth.

What that hypothetical wealth does provide and what makes it so appealing, however, is social standing. People are willing to listen to the people who have the most hypothetical wealth. You soon hear of what they have to say. When the hobo on the street corner says something... Wait, there is a hobo on the street corner?

A small group of people having the ear of the people is human nature. In ancient times, communication challenges left that small group of people to be limited to a small community (e.g. a tribe, with the people listening to the tribe leader). Now that we can communicate across the world with ease, a few people rising up to capture the attention of the world is the natural outcome. That was, after all, the whole point — to move us away from "small tribes" towards a "global tribe".

Hypothetical wealth is the attention-grabbing attribute du jour, but if you remove it, it will just become something else like who is most physically attractive, who tells the funniest jokes, whatever. The handling of "Dunbar's number" doesn't go away.

> Trouble who in power is willing to stop it?

China has tried with its Great Wall (meaning the internet one, although perhaps you can find relevance in the physical one too), but is it successful? Maybe to some degree, but I expect many people in China still listen to what Elon Musk has to say, all while completely ignoring the millions of Chinese people immediately outside of their door. It isn't really something a power can do (ignoring that there even being a power contradicts the whole thing). The people themselves could in theory, but they would have to overcome their natural urges to do so.