The person arguing the hardest typically has something else at stake other that being right. Whether it is their brittle male egos, love of authoritarianism or other kinds of fundamentalism, they are often arguing for a worldview. Being right often has little to do with it.
cafebedouin.org 
I was going to enter breach, rhetorical guns blazing, but … oh, never mind.
I enjoyed the irony of this comment.