I agree with you on all of the front of economic gains being captured in an outsized manner by those with more money - the data seems to support this (https://www.pewresearch.org/social-trends/2020/01/09/trends-in-income-and-wealth-inequality/)

But I'm not sure I follow the correlation or causation with who owns the majority of the economy and the price impact on something like land or other commodities?

I would argue that all price inflation, especially in land and commodities, is the result of money creation, the benefits of which is most captured in an outsized manner by the rich