Narcissistic abuse that takes place in a social setting, or at work, relies on the phenomenon of "group think." This is a widely studied psychological dynamic in which people are willing to ignore their own consciences, and follow the lead of one or more highly charismatic leaders.
Unfortunately, most people are weak. They do not have the integrity to assist someone who is clearly suffering. Or, they successfully convince themselves the target has done something to deserve what's happening, so, therefore, they don't have to do anything about it.
Under the influence of a toxic personality, deviating from a decision, or a consensus, can result in social sanctions, such as banishment from the group. Since the desire for self preservation is so strong, it overrides the desire to do the right thing.
Typically, in a dysfunctional group, the leader, or leaders, choose a common enemy. The purpose of the group then begins to revolve around punishing this perceived foe. The members in good standing are "rewarded" with a feeling of power and cohesiveness. Blinded by the powerful force of group think, they may assist the leader in destroying the target. Their consciences are assuaged by the false belief that they are acting in a just, or righteous, manner.
Group think can occur on a large stage. We see this with wars and with genocide. It can also happen in a smaller arena, such as in a workplace. This explains how one or more people are able to coordinate what then becomes another case of workplace mobbing.
By all accounts, workplace mobbing seems to be on the rise. We are living in very immoral times. People not guided by a well-formed conscience are especially vulnerable to becoming a member of a pack of workplace bullies.
Typically, the mob action starts because one chief bully acts as the instigator. Women are especially vulnerable. At least 40 percent of the time, the perpetrator in a workplace bullying incident is a woman, according to the Workplace Bullying Institute. Most of the time, she targets another female.