That may be true only on a raw/natural level. People also have a lot of other traits that may naturally threaten the social stability. The solution was education, and enforcing social conventions and mechanisms that lead to improved social stability and society's operation capacity. Just as unacceptable is now discriminating against sex or race, can become prohibited also the discrimination (as merely having a different attitude) towards being rich or poor.

2) "Money can generally translate to power in our world and so it creates absurdly uneven power distributions."

"Can" being he operative word here. We're talking about a possibility not a certainty. Each of us can be a potential criminal but we're not treating each others as such. We're innocent until proven otherwise. Money translating to power is just a phenomenon. Inherently it is neither good nor bad, it just is. Just as it may have bad results it can also have good ones.

3) "Generally, accumulating tremendous wealth is done on the backs of people and not on bringing them up as well."

This is the basic assumption of Communist Doctrine and it was proven wrong. Wealth accumulation does not necessarily imply exploitation of others.