I kind of like the idea of "cloning" being the "macguffin" of the NPT.
The technology everyone (bad guys and good guys) wants to control but that don't really matter from the audience point of view, since what would be interesting should be the relationship between the characters.
Hell, the "moral" of the NPT could even be that the Force (used for good or evil, since the bad guys wins in the end anyway) is stronger than technology.