Rentier capitalism describes the economic practice of gaining large profits without contributing to society. And a rentier is someone who earns income from capital without working. This is generally done through ownership of assets that generate yield (cash generated by assets), such as rental properties, shares in dividend paying companies, or bonds that pay interest. _ Wikipedia
We can stop Rentier Capitalism by sharing the profits from capital between the investor and the buyer of goods and services. Free markets share profits with lower prices for buyers and should be encouraged. However, markets are difficult and expensive to control. A solution is for investors to share ownership with buyers by allowing buyers to be investors and by sharing new capital with buyers.
Investors like to keep all the profits because the buyer's share in a free market goes to the investors for no extra effort. They do everything they can to keep the extra profit that should go to the buyer as lower prices. Governments could step in and control investors. However, external control is expensive, and the funds for control come from taxing profits. Allowing buyers to invest and investors sharing profits with buyers removes the extra costs and increases capital productivity.
Investors will not initiate the change, but governments can by adjusting regulations. For example, governments can require that part of each house rental payment transfers part ownership to occupiers to reduce the cost of housing. Government can start with public housing. The cost of public housing will more than halve, meaning that the cost of home ownership halves.
Importantly ownership is shared with the previous owner. With public housing, the government and previous occupiers share in the governance of the public housing. Occupiers never become the sole owner and hence cannot seek rent payments.
The same principles apply to all government and regulated businesses. Governments can halve the lifetime cost of all public infrastructure or double the investment in public infrastructure for a given amount of capital.