Not really - Game Masters are completely OOC. They don\'t roleplay with their characters, although some may choose to do it during < 1% of their time in-game. Game Masters deal with OOC conflicts between players, not characters, move stuck avatars, report bugs, test features, etc. If ever forced into an RP situation, they may choose to say that they are workers of the gods, but this happens so rarely as to be nearly insignificant.
Leave them as is - easily recognizable for what they are, instead of mistaken for members of \"regular\" guilds.