An interesting point I heard about income equality: pretty much everyone in this thread is in the 1%. The 99% are in the developing nations.
We complain that the moneyed elite are exerting undue political influence to keep the money for themselves, yet from a global perspective, anti-immigration laws are doing the exact same thing. The western middle-class has had kind of a raw deal lately, but not nearly as raw as the bottom 6 billion. One could argue that outsourcing, even with low wages by western standards, still brings that extra income to the Indian workers etc, thus improving global equality.
Of course there are still very valid points to be made about how those lower wages benefit the moneyed elite even further, but it's a start - and as money starts to flow towards developing nations, skills will improve, living standards will rise, and so will wages, equalising things further, at least for most people. In the meantime, we ourselves are probably better served by focusing on skill sets that aren't so easily replaced.