I think maybe since there isn't a great deal of access to the mainstream media and people don't understand the language of mainstream media, if you put music out there with lyrics that are loosely political, people absorb some of it and spit it back out. ↗
There is in fact no such thing as art for art's sake, art that stands above classes, art that is detached from or independent of politics. Proletarian literature and art are part of the whole proletarian revolutionary cause. ↗