I agree that many might have felt, or still do, empowered by the music at some point in time, and I feel that is more of failure of the consciousness movement. There is no cool guy out there to really speak again negative images or the minstrelsy so the youth have been left to get their image from the radio machine.
I submit that the cultural wars, especially in terms of Music, has a much further reach than the nightly news does. The average person around the world isnt watching the American nightly news the way they are following the music scene. I do agree that what you mentioned definitely works together to create a negative image though.