that hypothetical can't exist though, so what is the point in entertaining it. The world have finite resources, money (no matter the inflation) is a way to ration this to people. Not every single person can have a mansion in SF.

In this fictitious world I'm sure there would be other problems, perhaps some we can't foresee and might look like privilege to us today. We don't complain about "issues of the poor" from the past such as child labour (with some exceptions) today. Significant inequality will cause problems regardless of the baseline standard of living.