I think Nunes is a darling man! Braveheart! N

Both versions of the film have their respective merits. The drawback is the same as Atlas Shrugged.....the time to tell the comprehensive story.
Dune centers, metaphorically, around energy, oil / "spice", that makes the world go-round, Without this "thing" commerce stops on the grand scale and we revert to the near primordial.

The hardest part about Dune was that it doesn't really work as a "one and done." Unless you understand the galatic politics and such (which the first book does a poor job explaining) its hard to grasp some of the more alien concepts. While I like the story of the plucky insurrectionist in his stillsuit and the sonic lasers, Dune has never been one of my favorite sci-fi series because it got too weird too fast - like in the second book. And then the hero turning into a sandworm? Eh.

If you want well-done politics in fantasy, I'd check out Brandon Sanderson's Elantris.