Drawing upon contemporary virtue ethics theory, The Model of The Principled Advocate and The Pathological Partisan is introduced. Profiles are developed of diametrically opposed archetypes of public relations and advertising practitioners. The Principled Advocate represents the advocacy virtues of humility, truth, transparency, respect, care, authenticity, equity, and social responsibility. The Pathological Partisan represents the opposing vices of arrogance, deceit, secrecy, manipulation, disregard, artifice, injustice, and raw self-interest. One becomes either a Principled Advocate or a Pathological Partisan by habitually enacting or embodying the virtues or vices in the context of professional practices.