Of the top of my head I'm thinking of natural herbal remedies that can't be copyrighted and branded- although there have been moves to do just that, or to ban their use entirely. Of course if there's a potential profit in the 'alternative' sector than the big business side will move in and co-opt it - same in medicine as in music. It's where homeopathy suggests that you don't actually need profitable branded drugs- especially things like anti-depressants- and that symptoms can be countered by changes in lifestyle and in taking natural remedies, that it would be seen as dangerous and subversive.