World Income Inequality Ok, I'll hear no more bitching about the rich paying their fair share. America's poorest 5% are among the richest 30% of humans in the world. Capitalism has done you all well. Stop the envy. Stop the jealousy. If you are dirt poor in America, you're still among the richest 30% of humans on the planet. If you are middle class in America, you're among the richest in the world. This argument from the left is PURE envy, not necessity.