Max Weber conceived of sociology as the comprehensive science of social action. He developed an ideal type of four types of social action - zweckrational, wertrational, affective, and traditional. Weber argued that in modern societies, zweckrational action, or rational pursuit of goals through efficient means, has come to dominate. He traced this "rationalization" process to factors like the Protestant ethic and growth of bureaucracy. While bureaucracy promotes efficiency, it also concentrates power and can undermine human freedom and democracy through "oligarchy." Overall, Weber analyzed rationalization and its unintended consequences like irrationality in modern Western society.