I agree with you that it's troubling that a new model for monetizing free work isn't coalescing -- in art, open source, writing, and more. I've personally felt the sting of all of these.
However, I don't blame the downloaders or the Pirate Bays. People want what they want, and Pirate Bay managed to provide that to people: a download index for the price of an ad or a drive-by download. I congratulate them on their success.
I think if you can't convince people to hand over money for what you've made, then what you've made simply isn't valuable, even if it maybe was yesterday. Perhaps this means that the local band will have to pack away their guitars while the one-hit wonder Gangnam Styles rake in the bucks, but nobody is being screwed here.
What society wants from entertainment has evolved, and holding onto a static definition of what constitutes "art", "quality", or "enriching one's life" while ignoring what real people are clearly demanding from their entertainment is, I think, pretentious.
I don't think the internet is destroying anything or screwing anyone. It's just closing gaps and optimizing every industry towards exactly what people want; if that's thrown-together garbage delivered for free at the cost of promotions shoved into your eyeballs, then don't blame the internet, or Pirate Bay. Blame people for consuming crap and blindly selling their souls to ads.