for the record, like almost all big classic sci-fi, these books (dune) are remarkably bigoted and reductive. i still like space stories and political intrigue tho.
alt text: Trade Offer from Sand Worm Leto Atreides. You receive: 4000 years of planet bound subjugation. Spice, eventually. Famine. Sex ninjas from outer space. Golden Path... I recieve: Like 70 something Duncan Idahos. Gentle Hwi.
That was one of the points, yes. The lives of almost all humans in the galaxy were reduced to the same conditions, and put under ever increasing authoritarianism, that they would all break at once and forever have a shared hatred for despots.