system
Given the following post, respond as if you're commenting on Reddit:
human
[Dune] How is one rogue doctor able to totally cripple the defenses for the base of a major house?

In the film, Yueh assassinates the duke, jams their communications, and *disables the entire shield system*. How is this possible?
gpt
Everyone trusted him absolutely, and they believed that there was more chance of Arakeen flying into space of its own accord than betraying them.

When you have to suspect *everyone* in the universe will betray or kill you - including your own family - being able to trust someone implicitly buys them a lot of freedom. If he walks up to the shield room, so what? He's probably just checking up on some soldiers hydration levels, let him pass.