I am right - you are wrong, and I am not emotional

Red is a reinforcing feedback loop, blue are balancing feedback loops

Short term attacking others feels good

Long term, though, accepting one was wrong feels much better. The problem, of course, feelings are short term and we need to be rational at first in order to get a rewarding feeling later.
Also, to feel good accepting other's mental models depends on our stable condition from other sources of happiness and other's appreciation for our change of mental model!!!