The Powers sadistically prey upon an individual's innate—and admirable—senses of honor, duty, and sacrifice for a greater good (as latent as they are in our modern society). They twist and bind the impulses of justice as a means to their own ends.
In reality, none of this demonic activity that destroys precious human life and dignity on a mass scale drives toward any sort of universal, Platonic "greater good", but solely toward the security of Leviathan and its parasitic imperial class.