I often think the honours system is outdated and I just saw an old post about the way women on the honours list were referred to as Mrs/Miss/Ms but the men weren't referred to as Mr. I generally think all aspects of honours are old-fashioned, but one thing I have often noticed is how if a married man is knighted his wife gets the title of Lady, but if a married woman is made a dame, her husband gets nothing.
I know a few years ago, it was mentioned that if a married gay man is knighted, his husband wouldn't get a title, and I know Elton John's husband David Furnish commented about this.
It seems odd and sexist that a dame's husband doesn't get a title, but a knight's wife does. I remember reading one article from a few years ago saying about how some dames' husbands "aren't bothered" about not having a title. This kind of attitude irritates me, as it enforces inequality in titles.
I think this all comes down to the old-fashioned patriarchal origins of the honours system. It is the same with the aristocracy, if a woman with the title Lady marries, her husband doesn't get a title if he doesn't already have one, but if a man with the title Lord marries, his wife automatically gets the Lady title.