Well, only a small handfull of people work in the SW section of LEGO. About 5, I think. I don't know how many people aprove it, but many make sure it's accurate to their official referance. I'm not saying they do a good job, but they do. And seeing as LucasArts is a gaming company, I doubt they have any say in the matter. We use to be polled a lot about set ideas, and we still are on occasion. They don't have a build limit, but do often simplify it because of how expensive they turn out.