From NBC/Universal's general counsel in a recent anti-piracy FCC hearing
“Because of our nation’s interlocking economy, two-thirds of the lost earnings and lost jobs [due to piracy] are in industries other than motion picture production. For example, in the absence of movie piracy, video retailers would sell and rent more titles. Movie theatres would sell more tickets and popcorn. Corn growers would earn greater profits and buy more farm equipment.”
That's the joke.