You have Meghan pegged, but the royal family has all sorts of ways to handle even narcissists. In the end, most of them are brought into line, doing their best to behave, even against their own nature.
I don’t know if that would be good for Harry. At some point, he’s got to come to his senses instead of being enabled.
I have hopes that their dog-and-pony show will collapse, and then he can go back to his family without the ball and chain.