There's no question that how Johannesburg operates is what made me interested in the idea of wealth discrepancy. 'Elysium' could be a metaphor for just Jo'burg, but it's also a metaphor for the Third World and the First World. And in science fiction, separation of wealth is a really interesting idea to mess with.
Well, the average person comes home from work really tired, and just wants to flip through channels until they land on the thing that's the least objectionable to them. They're not looking for their new favorite TV show because they know that that search will take forever and they'll go to bed unhappy.