We can blame the producers of MTV, we can blame the masses for watching MTV or we can blame people like Simon Cowell for the 'factory farming' of the music industry. We can even blame the capitalist system we live in for encouraging the gold digging and milking of human talent. All the above are probably something to do with where were at.
Philosophers have argued that 'societies view' is an illusion portrayed by the media upon us. This social collective consciousness that we envisage works to pressurize us into living certain ways. From this I can see your point, that culture based TV producers have tried to engineer our opinions and judgement on society, culture, others and ourselves. They have become ever more efficient at exploiting market potential and therefore their 'products' appear increasingly tailored and canned for our daily consumption. Ironically, reality tv is usually [esp MTV] about people richer than us flaunting their endless wealth for us to only dream about. Even they are often using their mountains of money to detach from reality.
I think a lot of blame rests with record labels whose arrogant fat bosses essentially decide what WE will listen to tomorrow. They control bands and acts who they see fit for their exploitation. Some of the people they deal with are young and malliable and easily ripped off. Musical revolutions since the 60s have of course always been about the youth rebellion against the status quo. Labels who cherrypick and shape acts are the system and this must be the very thing rebelled against. Luckily things like youtube and myspace are changing that, where talent can gain recognition without a rubber stamp from capitol records and alike.
With everything seeming a little plastic and asthetic at the minute, I think the best remedy is to get back to small intimate communities where real inspiration is rooted. I think the purpose of punk was that it was a form of purist expression, unadulterated by the foreseen calculated marketing and saleability of the products around it. Tribalism is the core value in breaking the control of the consumerised system which engulfs us. Most of the best culture has spawned from tribal beginnings and died through overexploitation by the fat 'milkers' of the system. In my opinion people should just pay less attention to commercialized crap until it improves again; with greater emphasis on character and less on risk assessment and clinical production levels.