[epistasis]

Flattening economic inequality should probably not happen at the level of individual places where people spend money, but rather as a general principle across all of society. Most of the economic thought around capitalism assumes that actors have roughly equivalent economic power, in order to get the most benefits of effective capital allocation. E.g. If only a few, select people are allowed to launch new firms because they were born into the right amount of wealth, then we are greatly limiting our ability to improve the economy.

So instead these sorts of equalizations should happen with high progressive taxation and redistribution through something like UBI. In particular, taxing economic rents is something that economists of all political stripes agree is good. And many vast individual fortunes are built on economic rents rather than productive economic activity.