Really nice writeup!
I wish I'd read Dune recently, but it's been some years, and everything Dune-related sort of blends together in my mind in to an amorphous fog. That's based on reading books 1-4, I think. They weren't hard to read for me, but they contained so many ideas and content that I feel I'd almost need an academic course to put everything in perspective and examine the various themes properly.
Sort of the anti-Star Wars in a way. XD
Actually one of the reasons I love the work of Philip K. Dick is because he introduces all these great, forward-looking ideas in bite-sized chunks. For example, Do Androids Dream of Electric Sheep is just a novelette, but it contains some fascinating ideas, such as the Penfield Mood Organ, the Cult of Mercer and the Connection Box, the desperate urge for dwellers to own a pet (even if it's a robot), the whole quandary of what a 'Replicant' is anyway, and so forth.
So to me, both Dune and the Blade Runner world were serious, worthy material to springboard various series and movies, while SW and to a lesser extent Star Trek I question, here and there.
Bah. Rant over.