Same for neurotypical girlfriends
Have you considered that being comfortable admitting fault is a skill which some people never learned while growing up, regardless of gender? And can you imagine a world where men do the same thing, but you don't gripe about it because you're not in a relationship with them?
And, tbf, "the wife is never wrong" encodes some wisdom, same as does the saying "Happy wife means happy life" or, from White Men Can't Jump, "Always listen to the woman".