No one but teenagers with undersized brains listens to "singles" type music, and whites have the numbers and the money, so singles charts are supposed to reflect that.
Not necessarily! Having read music bloggers from the anglosphere (in case the same does not apply to Germany), the relative cheapness of singles along with a music press willing to hype has yielded great things. It was through singles that punk, hip-hop and rave first breached mainstream consciousness, such that I can remember. More mundane is the idea of music "saving lives," which sure does happen.
I want to subscribe to this mentality that popular music is a force for social change. In good times it makes digestible worthy causes and perspectives; in bad times it reinforces ignorance. Then I would say 2013 was particularly bad because there was so little rhythmic innovation on the charts, so filled with white pop stars shouting over angry drums. Blurred Lines is also awful in that respect, though whether it deserves a particular status is questionable (apologies, of course, for my clinical language here).