The Death Penalty Is the death penalty just or unjust? It has been argued that capitol punishment is imposed merely to gratify a desire for revenge. Whether or not a punishment is legal depends upon whether or not it serves a valid goal or purpose of a policy. The death penalty is usually defended on two grounds; is useful and that is just . Is capitol punishment moral or immoral? Is the death penalty moral? Capitol punishment is imposed to spare future victims of murder by carrying out the threat of execution upon convicted murderers. The death penalty punishes them not for what they may or may not do in the future