You could also argue in the other direction: capital is never going to be the only thing separating one set of individuals from another, because we sure like to

You could also argue in the other direction: capital is never going to be the only thing separating one set of individuals from another, because we sure like to keep finding ways to label ourselves different: ethinicity, religion, political ideology, sex preferences, eye color... Then again, maybe this is why Brazil finds itself in this steady state of economic inequality and endemic violence but without critical mass for a civil war: the same diversity that makes Brazilians apt at navigating conflicts is what makes us incapable at finding a common enemy and building an united front?