It's mainly about image these days.
Which "1D" fans can honestly say they would like their music if they were just average looking guys. They're not particularly talented and they don't really offer anything different.
There is a place for good music. Ed Sheeran is a good example of this. I don't even like his music, but I can see he is very talented and I understand why he is popular yet he is not the conventional attractive guy if that makes sense.
Music is a business, if you don't look or act a certain way, it's most likely you won't be heard, which is a shame.
Look at radio 1 and other commercial radio shows, none of the "DJs", even the specialists play their own music, it all has to be approved. It's just how it is...
Just go and find your music, the internet is massive.