I think the more relevant question here is why do such questions get more views in the first place. I'd say the reason is they divide people along party lines. [...] It's entertainment, and who's to say entertainment is not important?

To get most views, a question must divide people along some party lines and be simple enough, so even people with zero knowledge can jump into the discussion and express their opinions.

In other words, stupid people are customers too, and they are probably the largest and most easily manipulated segment of customers, therefore most important. Most of the media content is optimized to be accessible for stupid people. So even if the privileged question is important, the question and the proposed solutions are probably expressed in a way that is not helpful to solving them. Optimizing for a flamewar is more profitable.