What is the theme in Mating by Norman Rush?

In many ways author Norman Rush makes the issue of political, social, and economic injustice the true setting of his story with Africa as a local example. The recognition and pondering of this theme is what drives the characters and much of the action in the novel. Nelson Denoon has devoted his life and intellect to solving the problem and the narrator's perception of him as a great man is induced by her own discomfort with the inequalities and unfairness of human society. Certainly the village of Tsau and its inhabitants are metaphors for an attempt at a solution.