They totally should, BUT it seems SoundExchange STILL gets the money through something like lobbied-through by RIAA legislation of compulsory licensing even for non-label music (now that I'd call borderline criminal)
http://www.theinquirer.net/en/inquirer/news/2007/04/30/riaa-...
http://www.dailykos.com/story/2007/4/24/141326/870/429/32706...