One thing that is at play here is that someone was asked to create a world where there was a fundamentally unjust situation against which the players could rally against. It is only natural for them and anyone really to look around and mimic the injustices they can see.

I wouldn't say that capitalism is the bad guy here. Social stratification, disenfranchisement, government corruption, cooptation of minority leadership - all of these things happened under pre-capitalist conditions. So that first post about how there's no theming raound labour relations, rent, alienation and so on do make sense.

However we are in a capitalist society, and all those injustices do happen in a capitalist context. So I wouldn't fault anyone for saying that capitalism is the bad guy, because the bad guy is a series of systemic issues.