Many people are motivated to perform thorough and high-quality research even though they are not personally invested in the topic they are researching.
Journalists, for instance.
I personally prefer a source that is as unbiased as possible, even if that means that there is less "content", because I don't want to have to sort fact from fiction in the biased source. If I had to sort fact from fiction, I would basically be doing the research myself, which would defeat the point of looking at someone else's corpus of research in the first place.
