4. Diffusion of Responsibility
In groups, people often feel less personally responsible for their actions—a phenomenon known as diffusion of responsibility. This tendency can lead to inaction during emergencies or even participation in harmful acts, thinking someone else will intervene or take the blame. The bystander effect illustrates how responsibility seems to vanish when others are present. When no one steps up, wrongdoings go unchecked, and people who might otherwise help or object stay silent.