This type of behavior is ancient. Human history has dealt with this before and it always ends in a revolution or a bloodbath. Capitalism is a new concept and in some places like Venezuela, extreme income disparity led to a peasant revolt. Why people worship at the altar of uncontrolled wealth accumulation is something that I cannot fathom. No one truly needs more than 100 million to secure for themselves and their heirs continuous prosperity for as far as they can imagine. Let us be generous and say a person could keep up to 1 billion before massive tax penalties apply. If this happened by a tax on wealth, income disparities created by the market or just plain luck would be limited to a figure that still insures an incredible standard of living for the rich while keeping the money earned beyond that amount available for the people themselves. The people create the money, they form the basis for confidence in an economy that protects the value of the money through their efforts, their support of the law, of private property, of government itself. I see nothing wrong with a wealth tax forcing liquidation of assets beyond 1 billion. If anyone tries to make a claim that the incentive for Bill Gates or the Waltons is diminished because they can only amass 1 billion then what they are really saying is that greed is a greater value or moral guide than any other value we cherish. I for one would be very pleased to have 1 billion dollars. Would 2 billion make my life any better? I doubt it very much and even if it did make my individual life better, why should the entire society be organized around my greedy impulses?