I find from personal experience that the sheep that conform to trends thinking they're non-conformists usually gravitate to Metalcore and it's derivitives... ...That or they listen to Between The Buried And Me.
And what better way to describe modern-day trends better than the hipster. Yeah, they think they're non-conforming, but oh how so sad it's just about the opposite. Most hipsters are sheep, the music, the lifestyle, the fashion, the utter need to feel like they're of sophistication. It only fits the direction in where "sophisticated" black metal is going today, hence my usage for hipster black metal.
There is also the bands that start out as followers of one trend that become innovators later on themselves.
In short, you've probably got a point that popular music is built around innovators and trend-hoppers, though I might term the two differently. I just don't think it's a bad thing, by any means, nor is it exclusive to popular music.