The game of Monopoly ends when one person holds all the money.
In the same way if you look at the last 100 years of financial crises in the US, they all hit when the wealth was overwhelmingly concentrated in the hands of very few people.
I'm not one for class warfare. However it's become clear over the last 30 years to me that the goal of rich people as a group generalization is not the building a brighter future. Their goal is amassing even larger piles of money. Employing people or investing in PRODUCTION may be something you consider a good idea, but if they can gain it by investing in Madoff Hedge Funds that's what they will do. Beyond a certain point personal wealth becomes an obscenity. Does anyone really think Hank Paulson is "worth" 500 million dollars?
Tax structures are generally speaking one means of managing this wealth disparity and not letting it get so out of whack that everything breaks down. After the Great Depression 1.0 we put in place a lot of laws to control this, and for nearly 50 years it worked which is a RECORD length of stability in the US. As Elizabeth Warren has said before that you would see financial panics every 15 years or so. Then we FORGOT how important all this structure was and started pulling out all the threads from the rug. A progressive tax structure that keeps the JP Morgans of the world from getting out of hand is but one of those tools.
