Its not going to stop them they'll just move their server to Canada and continue to operate, instead of hording their licenses sell them, its what prompts this, greedy companies not allowing people to view content and refusing to sell it. So then people give it out for free then they complain even though they aren't doing anything with it.
If more people used iTunes it would be that more people would buy them off iTunes, but companies aren't that smart.
My take, from what I've heard and read the lovely folks with RIAA and MPAA have said and written is that they want to be the SOLE arbiter of what is 'valid' access to their content. If they had their way, we'd have never had access to tape recorders, VCRs, DVRs, CD burners and anything else that could be construed as a recording tool. These same groups of companies SUED to have VCRs taken off the market in the early 80s.
It took an AMAZING amount of cash to accept that MP3 players were a tool for profit. If they had their way in the 90s.. my Rio player would have been taken off the market, yes.. these same organizations have tried REPEATEDLY to take things off the market that they don't understand. They were, to my disgust, successful in removing the dual tuner cards from the market.
Both the Motion Picture/TV studios and the Recording studios have cooked their books and played games with their numbers to keep from giving up a dime they didn't have to. The Writers strike was in part due to the fact they didn't want to share royalties on streaming video, internet sales and increase writer pay offs from 0.3% to 0.6% (a real budget breaker).
The big point is these groups aren't into innovation. They dislike it.. Hulu, YouTube, Netflix and iTunes have all had problems with them, mostly due to their insistence to get control of the prices to the point that they wanted. IE.. no decrease in price despite the elimination of many of the issues involved with record production or dvd burning. You see a bit of the same in the big publishing houses over Ebooks as well. Rupert Murdoch's Random House has gone further with their 'library lease' idea (You, the library can 'lend' an Ebook something like 20 times before you have to 'rebuy' it. They argue they aren't selling an ebook but rather they 'lease' them to libraries..at full price each time)
Big media isn't into innovation and doesn't want to change their market plan with the times. They would rather stick to tried and true methods of gouging and embezzling.