I think it’s possible to get rid of rich people altogether. The reason capitalists earn a disproportionate amount of money is because they risk their time and/or money creating successful business ventures. But in theory, the entire process of entrepreneurship can be automated and de-risked. Once this happens, it should be possible to give people money up-front to develop desired products and services, under the condition that they cannot earn any additional profits/royalties. Their incentive would be increased income on top of UBI, as well as reputation points and a sense of purpose.

Such a system would still have a free market, where goods are priced according to supply/demand. It’s just that venture capitalists, investors, marketers, etc. are no longer needed