I don't know if I agree with the reasoning here. This is more an inherent problem with capitalism, right? You have to sell goods and services for a profit. But if everyone makes a profit, the money will lose value, and there will be winners and losers. The winners will continue to be bigger and bigger winners, and the losers likewise in the other direction. Throw in the stock market and you've got a recipe for disaster.
But I don't know if I agree that the money is "ours". Rather, a reasonable portion of it should be shared for the benefit of all.