Normatively powerful(as used in ethics and philosophy)
Having strong influence over what people think they should do or how they should behave, even if it doesn't describe what people actually do.
authority(as another method a physician might use to ensure patients comply with treatment)
The power or right to make decisions and have others follow them, based on expertise or position. A doctor has authority because of their medical knowledge.
categorical imperative(Groundwork, 4.421, 429)
The moral law requiring that one will the maxim of an action as a universal law (removing any self-preference) and treat humanity in any person always as an end and never merely as a means