That's a good point. I wouldn't want SW to fall into that. I wasn't thinking so much as it being "about" the political structure so much as providing a skelatel structure for the story to function. How did Leia wind up a senator at age 18? What were the Jedi doing before the fall? Why? Hopefully there is a way for quickly and in as much of a shorthand as possible filling in the gaps for as much of the audience as possible. I don't know how much emphasis public education in other countries puts on the three branch structure. In the US, I think checks and balances are explained in a rudimentary way by age 11 or 12. This could also be used to help explain why the Force seems to be so little understood in the galaxy just 20 years after the fall. The women in the Senate and the Jedi might be very concerned about revealing too much power too often because of the tremendous envy and distrust that would generate among the political class. Females dedicated to useful marraige and subtle behind the throne influence is a bit retro and associated with epic and myth.