Gentlemen, how about this: Rather than electing a single person to be the "be all, end all" undisputed leader of a single house, how about create a parliament/senate where a group of representatives would discuss possible resolutions, eventually voting for those to be put on paper and into law? This could make for some interesting RP without putting too much power into the hands of a single player. And in the end it would be up to the military players to decide whether to enforce it or not, considering regardless what they do it will be good RP all round.
We can still have someone RP the local president (Liberty) /chancellor (Rheinland)/prime minister (Bretonia)/shogun (Kusari), but adopting the gentleman's rule of not abusing said power to do ridiculous things.
Remember that time in discovery moves as fast as real time, and elections only happen once a few years. President Powell or Chancellor Reinhardt aren't going anywhere anytime soon, at least not legally:PHence, my suggestion..