If anything you are arguing AGAINST the rising disparity by asserting that the middle class has the MORAL RIGHT to retain its earnings. That's the point: the middle class is the primary victim of this disparity. Yup, the middle class is the primary victim - the Obama plan increases taxes on families with gross income greater than $250,000.
In many families, $250,000 gross income is certainly nice but is not rich. In the last twelve months, I've made close to 2....certainly nice, but I have a family and an extended family to take care of. So I am not "rich" - and my gripe is with the government and their actions, not with those who are "richer".