It doesn't stop there. In Econ 1A, "pure capitalism" is defined as a market where neither any one buyer nor any one seller can affect the market price. In buying and selling labor, we need the same number of man-hour buyers as we got sellers. That's why we need lots of unions and lots of employers, so neither side can control of the price of labor.
Yeah, the UAW and Teamsters are such good examples of free-market enterprise.