Munitions manufacturers prosper because many countries want weapons. Philip Morris prospers because many people want cigarettes. Conservative talk radio hosts prosper because many people are conservative, and like to listen to them. Lobbyists prosper because many people want the government to act for their particular ends, and the government has the power to do so. (Campaign finance reform always fails for the same reasons.) McDonalds prospers because many people like Big Macs. Drug dealers prosper because many people like to take drugs. Demand precedes supply. A lot of bad legislation and litigation would be avoided if people could tell an effect from a cause. It’s really not that complicated.