Casaubon is a deep believer in hierarchy and authority, and he holds the conservative view that people should temper their behavior according to their place in this hierarchy. Neither Dorothea nor Will sees the world this way, but unlike Will, Dorothea has limited means to rebel against it. This passage also illuminates that Casaubon does not truly respect Dorothea’s intelligence and opinions, but rather expects her to remain subservient to him.