Ah, and there has to be a Clark Kent behind that Superman, doesn't there. So yes, two thumbs up to the changeling trope. I'd like to see more changelings on the thrones.

True about motivations, but as I was coincidentally just saying to someone today, we don't often get ownership of the "you" that we have to live with, unless we want to live a really sheltered life where we don't run into conflicts with anyone else's beliefs or expectations, or get to know many people, and trying to explain your motivations is a bit of a wank-job anyway. Unless it goes to court, I think it's generally optional and the option is best honoured in the breach than the observance. All I know is that any sentence that begins "I am" is ultimately false. Of that I am certain. ;)