The relavence of the .1% of top earners in the grand scheme of things is like a fat bloke jumping up and down on the rotation of the earth.
I don't actually see income inequality per se as the problem the problem is the consequences of the inequality. If you have someone living in Whirlow on £80k and their neighbour is on £200k their relationship will not be damaged by the inequal financial position; to put it simply because they have enough.