Earlier quoted context omitted.
That's why we have a stock market, a futures market, businesses, etc. The commenter above gave an example of a real estate investor. That is a particular type of investor which has to deal with some particular kinds of risk that not everyone is suited to or wants to deal with. For those people, there are other investments they would be good at, and they should engage in.
You didn't actually respond to my points, but just pointed out the existence of other types of business where the centralizing flow is less obvious than real estate.
Societal wealth is built by one person building a lot of wealth based on others paying him, and just replicating that millions of times over the population.