Self-serving or not, Lars was right about Napster. It isn't just about lost sales - it's about cultivating a generation of people who believe that music should be free. That mentality hurts artists no matter what tier they belong to.
We had Napster when I was a kid in the late 70s and 80s, it was called tape an album from your friend. I borrowed most of my collection from friends early on and made mix tapes. Sure, I eventually went on to buy a lot of this stuff, but I always figured that if the record industry didn't expect people to share music, they would never have allowed cassette recorders. I'm not sure what the difference is.