I don't think you understand "rule of law". Rule of law does not mean that Nazi guards must obey their superiors and execute women and children in concentration camps. Rule of law does not mean that we must obey everything passed by Congress and signed by the President. Laws can be unjust on account of their failure to conform to natural law. In that case, non-conformity to the unjust law, and conformity to natural law, is still abiding by the "rule of law".
-A8