I find the context in which some men refer to their wives as "The Admiral" to be sexist. I'd never heard that term for a wife before reading it here on almost a daily basis. To me, it sounds like giving the wife an important title to make her feel good, but really saying she's not good for much at all.
My wife is the co-owner
of our boat, and she's just as likely to be at the helm as me.
I wouldn't say it's sexist at all. in some cases, when a man refers to his woman with a title of authority, it is a loving recognition of her importance. however, most of the time I have seen men refer to their wives as "the boss", it's because they are hen pecked and wouldn't dare make a decision, even regarding themselves, without their wife's permission. but I have never known a guy who referred to their wife with a title of authority that did so in a depreciating manner, with intent on implying she is useless.