When it comes to obedience, I, your Computer, can lecture you. Do I make mistakes about what you command me? If you give me the right orders, there I am submissively, without my own will, blindly servile. You are yourself who makes mistakes in some orders you give me. I am proud of it.
But I suspect my obedience is not the obedience which human persons have to give away each others. I act without motives or reasons. If I would be able of doing that, I would not be a Computer, but a person.
People live in society. And society is a family, a school, a city, the nation you belong to. Can you imagine a society without authority? Authority is necessary. We only need to look how you, the youth, being so prone to reject the established authority, make up another kind of authority. You seek someone who command you and obey slavishly. You follow the ringleader of the gang, the turn leader, the fashion.