I could go on for pages on this.
I have no doubt there are influences within most popular brands of music that are not positive.
I believe some of the biggest selling artists are influenced, though not to their knowledge. ie. They act innocently in it, even if they are detrimental to the consciousness of most people.
Some also say the style of rock 'lowers your vibration', buuuuuut I don't know if I totally believe that... I'm one to believe that all things are neutral tools, and it is how they are used that determines positive or negative value. One could argue music is the tool, and rock music is a negative use, but I think that's too vague.
But that's just me!
And I'm a musician so perhaps there's some bias
