Probably obvious to those who have read the book and seen the movies, but interesting in light of the Skywalker Paradigm, which holds, for example, that Jabba is nobility and not a gangster (he’s referred to as “Lord,” Luke must approach him diplomatically) and that the Jedi do not have supernatural powers, but are just master manipulators and hypnotists (sort of like male Bene Gesserit).
The page includes details on many of the influences on Dune as well, such as General Semantics.
See also:
Sacrifice and Submission: Game of Thrones and the Aesthetics of Fascism