America’s more capitalist sports fans commonly acknowledge that their country’s most popular sports, like the National Football League and the National Basketball Association, have several rules that would please a Scandinavian social democrat. Salary caps and luxury taxes limit how much each team can spend on players, punish those that over-spend, and close the gap between rich and poor teams. In both sports, the top draft picks typically go to the worst-performing squads from the previous year. Revenue sharing redistributes wealth among the rich and poor teams. Overall, success is punished by design, misfortune is rewarded by design, and the power of wealth is circumscribed with spending caps.
http://www.theatlantic.com/business/archive/2016/06/why-american-sports-are-socialist/487640/