In "The Sunday Philosophy Club," Alexander McCall Smith explores the significance of resentment in shaping our moral compass. The character argues that resentment serves a crucial role in highlighting and recognizing injustices. Without these feelings, individuals may lose their sensitivity to moral issues, leading to a diminished understanding of right and wrong.

This idea emphasizes the importance of emotional reactions in maintaining a strong ethical framework. If we overlook the necessity of such responses, we risk developing an indifferent attitude towards moral breaches, which can undermine our commitment to justice and fairness.