When a human plays nothing new, it's not a new song. How can you express your emotions with other peoples' words?I think that's the real heart of the problem, though. These are people that are putting business ahead of altruism. These are people that don't have anything musical to say, but know they can make a quick buck with another Santana dance remix or samplefest.
The real heart of the problem here is that economic, purely rational motivation has become pervasive in the musical culture of today. People are willing to be dishonest and betray a listener's musical trust if it means more profit.
Sadly, the only people not buying into it tend to be musicians themselves. The rest of the rabble slurps it right up, and calls us snobby luddites for suggesting that what they are listening to really is completely devoid of art, passion, and noveau.