One argument could be that on some zero sum games, wealth inequalities create material inequalities. An exemple is real estate. Major measures can be confort v

One argument could be that on some zero sum games, wealth inequalities create material inequalities. An exemple is real estate. Major measures can be confort vs. business advantage: a large house in the middle of nowhere v. a small apartment in a 1-tier city. The wealthier you are, the more of a somewhat fixed quantity of space in a 1-st tier city you can have. It reduces the space available to less wealthier people, may decrease their confort and therefore their productivity. I'm not sure working on wealth inequalities is the best way to work on that, but wanted to make the point that it can be seen as the root cause of certain problems, given the rules we have chosen to attribute certain ressources.