Obviously different people want different governments.
Look at most 'western' governments ... you always have some of the population that wants something different. Yes, there are even Americans who wouldn't mind having a dictatorship.
It is possible with the recent memory of the Empire, that any 'Republic' post ROTJ might be more careful to prevent things from getting too bogged down.
Damn, I guess it is time for me to read 'Foundation' again though.
