While the major labels had their faults, the DID act as investors for musicians.
This was probably their most important function, and it seems as if though the majority of Music 2.0 proponents do not know this.
This isn't the only thing they don't know about a functioning music industry.
The next time you're listening to a Music 2.0 presentation, stand up and ask the dude if he knows where the closest band rehearsal spaces are, where the closest guitar repair services are, who manages local acts, who does booking, who is currently promoting what genres and at what venues... really, I could go on and on about a lot of details that some messiah of the digital arts is most definitely unaware of.