I realize all people have various and complex biases, and that we all get into arguments from time to time. However, I've known one or two people who seemed abnormally resistant to suggestions that they might be mistaken. Their tendancy to distrust and argue seemed to impair them socially, to the point where they struggled to maintain relationships. This makes me wonder if "self-infallability" is ever actually a mental disorder.
Is there a mental disorder associated with being severely argumentative or otherwise "self-infallible"? Especially if it impairs one's social or academic skills?