Try to honour everyone. Regardless of what they have done with their life. Regardless of whether you like or dislike them, agree or profoundly disagree with them. Look them in the eye, see another human being, another you. Recognise their inherent dignity, even if they don’t. Treat them as you would want them to treat you, regardless of how they actually treat others.
Respect, on the other hand, is something that must be earned. Never respect someone because of their position, or what they have done; but for how they inhabit their position, and the way in which they have done what they have done. Never respect anyone who demands that you show them respect; and never demand of anyone that they show you respect, either. But live in a way that you yourself would respect others for.