Many people view themselves as consistent and principled, believing their actions will always align with their values regardless of the circumstances. However, psychological phenomena such as social loafing and the bystander effect reveal that our behavior can change significantly when we are part of a group. These effects challenge the notion of a stable self-image, showing that individuals may act differently depending on social context. The article explores how group dynamics can influence our willingness to help others or take responsibility, often leading us to act in ways that contradict our self-perceptions.