I partially agree with you but I don't think you can categorically state that the issue is any one thing. Some people see income inequality as a problem in its

I partially agree with you but I don't think you can categorically state that the issue is any one thing. Some people see income inequality as a problem in itself, a fundamental (literally) moral one. From that perspective, increased wealth at the top is bad for its own sake. My concerns are mostly about money and power. I think the two are inevitably intertwined. I think both socialist & liberal (in the economic sense) ideologies put a lot of emphasis on decoupling them. Neither were successful. I don't think it's possible. Concentration of wealth and concentration of power are related problems. It's a potential threat to democracy. There are also positive feedback effects which are dangerous. One way this manifests is closely related to the title (but not really the content) of this article. Talk about class is very coloured by the last century's political battles but one thing that is worth keeping in our lexicon is the marxist concept of "class," though without a lot of its extensions. The Marxist definition of class is more or less a group with shared economic and therefore political interest. The modern underclasses, middle classes, millionaire and billionaire classes can have potentially divergent economic and political interest. An economic interest which represents a large part of the economy can translate into economic policy. In the case of the 0.1% it just takes a handful of individuals to create that kind of an influence. Historically, countries have been openly run for the benefit of the upper classes.