When large corporations gain too much power, prices offered suppliers, wages paid workers and prices to consumers are no longer driven by market forces. Governments are captive to the companies they’re supposed to be regulating. And those corporations earn higher profits by lowering wages, raising prices and manipulating supplies. When 4 companies gain a combined market share of 40%, competition gives way to collusion. A free market is no more. 5 companies control 70%-90% of the worldwide trade in grains. 4 companies control more than 80% of the US of beef, 70% of its pork and 60% of chicken.