Those who have for centuries fooled the rest of humanity into believing that their unearned, illegitimate, and unwarranted elevated status is justified know the findings of this painfully obvious fact to be true. Which is why they pull out all and every stop to prevent the majority from realizing it by vilifying anyone and anything that could spread that realization.
I assume you're including yourself in that - I bet you're in the top 1/10 of 1% of income globally: http://www.globalrichlist.com/ I am far from asserting that we have a fully equitable system, of either opportunity or outcome, but remember that inequality is an unavoidable result of private property and freedom of choice. (For example, give everyone $100,000 and freedom to spend or save as they will, and check back…
You have to keep in mind that even when talking about wealth and income distribution in the USA we are only just talking about the most obvious of disparities, the pile of snow on the tip of the iceberg. We don't talk about the value of soft disparity in things like opportunity, privilege, access, and corruption.
Your last sentence is the the one at the crux of the next step in human social and economic development. I pose that it is the linchpin keeping shackles on the vast majority of humanity.