You mean like the Russian oligarchs that keep 'investing' in the war they are in... oh, you mean where they fall out a window when they don't.

The next thing is the idea of money really does break down once you get automation without people. If you have said automation and enough materials to get going you can start increasing your 'wealth' in things like factories/robots/data where the now unemployed stop having any means to make more money. Hence you'll start buying up properties from people that are going bankrupt.