What does "one life is worth one life" mean? Seek an explanation

The recognition of the value of life and the strict control of the number of death sentences provide moral support for the legitimacy of exchanging one life for another, but there is a paradox in judicial logic.

Compensation is feasible to curb the death penalty. Justice is the primary value of punishment. Compensation is the obligation of the defendant, which is not necessarily related to the size of the crime. In the punishment of a crime, economic factors are rarely considered, and the death penalty must not be imposed because the compensation is too high, otherwise there will be suspicion of redemption with money. However, the law is nothing more than human feelings. If the defendant actively compensates and sincerely repents, as an important discretionary circumstance of sentencing, it is also reasonable to use the death penalty with caution. Insisting on the death penalty blindly, turning a deaf ear to criminal losses, or even not considering compensation at all, is tantamount to adding insult to injury to the victims.