Mankind would never have reached the present state of civilization without heroism and self-sacrifice on the part of an elite. Every step forward on the way toward an improvement of moral conditions has been an achievement of men who were ready to sacrifice their own well-being, their health, and their lives for the sake of a cause that they considered just and beneficial. They did what they considered their duty without bothering whether they themselves would not be victimized. These people did not work for the sake of reward, they served their cause unto death.
Ludwig von Mises, Bureaucracy (New Haven, Conn.: Yale University Press, 1944), p. 78.