In the twentieth century the word "cult" (originally meaning "worship") became a pejorative word that people apply to a group or movement that they do not like and perhaps fear. The word "cult" implies a stereotype that involves what sociologist James T. Richardson has termed the "myth of the omnipotent leader" and a corresponding "myth of the passive, brainwashed follower." These are just that: myths. They're inaccurate assumptions about groups and movements with unconventional beliefs: no leader can become a dictator without complicit lieutenants who prop up his (or her) authority; the "brainwashing thesis" has been judged to be unscientific by the American Psychological Association and American judges and has been debunked by social scientists; in fact, people frequently change their minds and leave a group when they lose faith in its ideology.