Abstract

This article discusses the moral philosophical problem of recognizing the moral status of an entity from a sociological perspective. The problem of moral status is of direct practical relevance. It is not only a question in moral philosophy but also in the social practices of modern societies whether embryos, newborns, comatose patients or those suffering from dementia should have full moral status or not. Since it is a question of practical relevance it seems appropriate to me to discuss it from the standpoint of a theory of society. I develop my sociological perspective based on the social theory of the co-world , into which I will integrate the theory of functional differentiation . This theoretical perspective in combination with preliminary empirical results leads to the hypothesis that it is a functional element of modern societies that they draw the borders between entities who have full moral status and other beings along the lines of the criterion: living human being. A criterion demanding the exacting quality of displaying at the time in question the properties associated with personhood would be dysfunctional for a modern society. This result requires that Luhmann′s theory of human dignity has to be revised implementing a sociological theory of society′s perspective