Selfishness was originally just a neutral word, describing someone who prioritizes their own interests. But in the cultural context of China, it has gradually been imbued with a strong moral connotation, even becoming a form of criticism. Often, a person is not harming others' interests, but simply maintaining their boundaries, refusing unreasonable demands, or unwilling to pay for others' expectations, and will be labeled as "selfish." As a result, the meaning of the word "selfish" has quietly changed. It no longer refers to satisfying oneself by harming others, but has become "not acting according to others' expectations." But in fact, defending one's own interests is a right; encroaching on others' interests is the problem; refusal is a boundary; plundering is unjust.