Recently, there has been renewed interest in the role of values in family therapy. A number of theorists agree that there is an inherent ethical dimension in all forms of therapy, because therapy necessarily involves influencing others in accord with a set of values. In cultures that value self determination, a potential conflict arises between the therapist's inherent moral influence and protecting the client's self determination. This article identifies that dilemma and investigates how different treatment approaches resolve it as they attempt to promote justice in the family.