We're all too attached to our iPhones and Playstations to rebel these days, aren't we...?
You post suggests the rock and roll "attitude" is the *correct* one, based on the times you've grown up through and what you feel is important. It's not the only one, and however you feel about the Pop Star SuperFabulous or HipHopBling cultures, there are at least as infuential in their own way to current generations as "our" music was to us.
It's only the older people who keep looking back. The kids are too busy trying to find their own lives and meaning to worry about what ours was like... until they grow up, and start complaining the music today isn't like it was in *their* day and they start losing touch with what the then current kids generation is connecting with...