“But, in the case of marriage, there is something more. By conceding the privilege of polygamy to the chief, the group exchanges the individual elements of security guaranteed by the rule of monogamy for collective security, which they expect to be ensured by the leader. Each man receives his wife from another man, but the chief receives several wives from the group. In return, he provides a guarantee against want and danger, not for the individuals whose sisters or daughters he marries, nor even for those men who are deprived of women as a consequence of his polygamy, but for the group considered as a whole, since it is the group as a whole which has suspended the common law for his benefit. Such considerations might be of some interest for a theoretical study of polygamy; but their chief importance is as a reminded that the conception of the state as a system of guarantees, which has been revived in recent years by discussions about systems of national insurance (such as the Beveridge Plan and other proposals), is not a purely modern development. It is a return to the fundamental nature of social and political organization.”
(Claude Lévi-Strauss, Tristes Tropiques, trans. Doreen Weightman & John Weightman, p. 315.)