Jumping the gun a little there, aren’t you? Nobody said anything about selling the pirated content. With art that’s considered forgery, and that’s a different crime.

If you steal the Mona Lisa from the Louvre, the Mona Lisa is then gone. Nobody else gets to have it or see it. That’s theft. If I pirate your software, you won’t even know I’ve done it, and any person with a copy of that software keeps it, including you. That’s piracy. You see the difference?