For those that don't know, the GIni Coefficient is a crude way of measuring inequality (You can see the math behind it here). The basic idea is that on a scale of 0-100, 0 would represent a country where everyone had identical amounts of money, and 100 would represent a world in which just one person had all the money and everyone else had nothing.
Anyway, Brazil is actually lapping the field on this front, putting everyone to shame in terms of inequality.
But the US and China are at the same level.
And if wealth inequality here is causing social schisms, as rich as we are, you can imagine how the low-end Chinese feel in this world of rapid growth and exploding wealth.