[Philosopher Hannah] Arendt concluded that evil in the modern world is done neither by monsters nor by bureaucrats, but by joiners.
That evil, Arendt argued, originates in the neediness of lonely, alienated bourgeois people who live lives so devoid of higher meaning that they give themselves fully to movements. It is the meaning [Adolf] Eichmann finds as part of the Nazi movement that leads him to do anything and sacrifice everything. Such joiners are not stupid; they are not robots. But they are thoughtless in the sense that they abandon their independence, their capacity to think for themselves, and instead commit themselves absolutely to the fictional truth of the movement. It is futile to reason with them. They inhabit an echo chamber, having no interest in learning what others believe. It is this thoughtless commitment that permits idealists to imagine themselves as heroes and makes them willing to employ technological implements of violence in the name of saving the world.
See also my blog post on the MCI Worldcom fraud, Integrity Ebbs by Inches