Not saying that the ultra-wealthy have the right to be tyrants, but "peasants" of today's age have a quality of life that is orders of magnitudes better than peasants in the feudal age. This simple truth seems to get lost so easily when talking about inequality in a vacuum.
Then we might have reached the point to discuss whether it’s enough to lift the worst-off to some minimum where they can survive or whether we’re in a position now to also enable participation on broad scale.
Right now it looks like wealth is self-enforcing. Across certain thresholds, you can get an expert or have the network to help with your taxes, legal issues, investment strategy and so on. Maybe you even inherited it all from your parents. There are certainly prominent counter examples of people who crossed these thresholds with their own hard work. The majority of people does not.