Because unfair judgment is the source, people act according to existing judgments. If there is an unfair judgment for the first time, people will feel that it doesn't matter if they are wrong, so they will continue to make mistakes, so there will be infinite mistakes; Even if there is no unfair judgment later, the wrongdoer will use the unfair judgment in the past as an argument to justify his mistake.

Although unfair behavior is wrong, it can be corrected through judgment, which can continuously reduce unfair behavior.

I don't know what subject this is ... I'm not very good at writing. I hope I can help. ...