Possibly relevant to most of the free market/government intervention discussion:
CHARTS: Here's What The Wall Street Protesters Are So Angry About...

I'm sure the Libertarians will come to the conclusion that all of the problems listed (if they actually agree income disparity is a problem) are the result of government intervention.

In the case of bitcoin, I'm not sure if the apparent disparity will really be a problem in the long run. The network (and markets based on it) are not able to distinguish between a hoarded Bitcoin and a lost bitcoin. The value of bitcoin will always be based on coins actually in circulation. The biggest risk is that some of the large holders suddenly decide to sell everything, crashing the price (by putting more coins in circulation).

The profit-maximising hoarder would be wise to sell their coins as slowly as they can; unless they expect the value to eventually drop to zero (I think it will approach that within about 25 years, but not the near term). Selling coins puts them back in ciculation: likely spreading them out among more holders.