Using your same logic, we should just help ourselves to food in stores, since it's just a recomposition of dirt and organic stuff that's been around since the dawn of man.
I just am puzzled why so many people don't see the "value" of intellectual property....
That said, I don't care if "big music" dies. I can make in my little bedroom studio music that's just as "good" as anything you can buy at the store for $17. The prices are far far far too inflated, and "music superstars" should be a fading breed....