It depends. The boycott BP page received over 1 million likes, created tons of press coverage, organized protests and I think influenced the perception of, and reaction of, one of the richest companies in the world. That page was huge, literally.
howlermunkey's fan page, on the other hand , has 5 likes lol.
So I guess, if your question is, beneficial to hubpages, I think it can be, but has to be built like everything else.