Wealth is there to motivate people to do something more than dwell and ruminate. If there was a wealth cap or maximum amount of money you can have no one would have motivation to do all these things we have like companies and such.
It’s not so black and white.
Currently probably the best bleeding edge system is doughnut economy where power of capitalism is constrained to non essentials from one side and planet health from another. www.kateraworth.com/doughnut/
Netherlands if I remember correctly currently is doing something in that direction and generally eu capitalism is somewhat constrained