People don't know the song?! Just how stupid and narrow-minded are some people? Both their self-titled debut album and the follow-up Evil Empire went triple-platinum - that's success you earn, you don't buy it.
And celesti, just because RATM are signed to a major label does not make them corporate music. If it was corporate music, they'd be clean shaven, have short hair and be singing about how wonderful the world is. RATM have never once watered down the message of their music, not ever, and they never will. You would have a point if say a band like Metallica had been picked for this campaign, given that they DID water down their music/message in order to achieve mainstream success. But no, please learn something about RATM before running your mouth about them being "corporate".