In mass social movements, the details may vary, but the overall pattern is the same: 1) Rise of a charismatic leader, 2) Hand picked lieutenants who plan and oversee the subsequent action, 3) Crowds of enthusiastic believers in the message. Once in power, the movement becomes an organization and establishes its own rules to monitor the behavior of its loyal followers.
Angry children who don't receive help may grow into angry teenagers. The anger builds, gets suppressed, buries itself inside where it builds some more. The child has no idea how to handle it. The reasons for the anger and for the deep sorrow that accompanies it may be obscure even where general problems that may or may not be related can be determined.