... to have you enter under my roof; only say the word and my servant will be healed. For I too am a man subject to authority, with soldiers subject to me.
-- Mt 8:5-17
Those who exercise authority should do so as a service. "Whoever would be great among you must be your servant." The exercise of authority is measured morally in terms of its divine origin, its reasonable nature and its specific object. No one can command or establish what is contrary to the dignity of persons and the natural law.
-- CCC 2235