We all have a tendency to surrender our moral authority to the 'group', to still our own voices and assume that the group will handle whatever difficult issue we face. We imagine that the group is making thoughtful decisions, and if the crowd is moving in a certain direction, we follow, as if the group is some moral entity larger than ourselves. In the face of the herd, our tendency is to go quiet and let the group's brain and soul handle things. Of course, the group has no brain or soul separate from each of ours. But by imaging that the group has these centers, we abdicate responsibility, which allows all groups to be hijacked by the loudest voice, the person who knows how brainless groups really are and uses that to his advantage.