How does the discovery and explusion of the would-be agitators illustrate the power of the community?

The orderly workings of Weedpatch society are reflected in the manner in which they deal with the intruders during the dance. There is no outbreak of violence, as Steinbeck had earlier foreshadowed. The committee members deal with the situation calmly, defusing the situation and refusing to allow the deputies and the intruders at the dance to instigate a violent riot.