insiders with huge amounts of money moving the market for their own gain
True, but huge money insiders often lose at their own game. Huge money can move markets in the short run, but eventually economic forces come home to roost.
This happened for many insiders in the spot energy market a few years back (e.g. collapse of Enron), it happened with many inside players in the mortgage market and recently even happened to large hedge fund in the commodities market (Ospraie Management).