R Yochanan b Zakkai was not sure till the end of his days whether he was right when he asked Vespasian for a little, and succeeded, or maybe he could have asked for more. Somehow he did not trust his daas Torah …
on the other hand, when rabbi Yehoshua ben Korcha calls (his student?) R Eliezer “vinegar ben wine” for becoming a Roman collaborator searching for Jewish bandits, R Eliezer tries to defend himself. But when a simple person says the same thing, R Eliezer sends the guards on him – so disrespect to daas Torah might be dangerous…. but then R Eliezer himself takes yissurim upon himself till his death because of this episode, despite others assuring him that his “gut judgment” was correct and the man was deserving and he himself tested his fat to prove that he is right. So, he also was not sure of his own daas Torah … not an easy question.