So basically a staff member without any powers to make his or her job easier?
I do, however, like the idea of having a player be the "President" or other figure. There could be a little election where everybody can vote for a week somewhere on the map and a neat little palace where they can live. I guess my idea is a lot different from yours because the "President" or whatever you wanna call him wouldn't really be helping staff, just would be a little competition for the players.