In my opinion, The political establishment and the media encourage people who appear on the surface to be apolitical , this might explain why Pete Seeger, OR leon Rosselson have never been asked to be on Desert Island Discs.
    it is difficult for everyone to know what is the best way to promote Folk Music, maybe I am wrong, and an apolitical approach is right, because that way Folk Music is given a platform by the establishment because it is seen to be non controversial or safe.
   on the other hand if a controversial approach was adopted perhaps there would be higher ratings, someone years ago had the guts to give Pete Seeger a tv programme [rainbow quest] which gave us songs like this,http://www.youtube.com/watch?v=VucczIg98Gw