I know what you mean and I understand what you're trying to say, but I just don't see why you're hung up over an MTV award. Unless it's the Grammy's or something actually legit, there's no point getting up in arms over it. It's usually popularity contests anyways.
I can't speak for country music specifically because I don't listen to it, but I'm pretty sure Taylor Swift was found through putting her music out on the internet, as well as plenty of other artists in other genres. Yeah, it does seem like more people are found this way in hip-hop, but I can't say for sure that it isn't the same way with other music.
And like I said before, you don't have to listen to these dudes like Charles Hamilton. He's never even blown up to the point of TV exposure either so really the only time you're hearing his music is when you choose to listen to it.
About your last point, the quality guys are still going to stand out as long as they're good enough to stand out. If you add 1000 ****ty players to the NBA, the Kobe's and LeBron's are still going to stand out. For every Gucci Mane or Soulja Boy there's a J. Cole or Blu.
Also, while it hasn't exactly saved the fact that most people download their music for free now, iTunes does do a decent job of getting people to pay for their music. A lot of people do use it.