It would depends of which judiciary system that a particularly country practices. In some normal case it would be a rule of law and those on the bench that precided the case. Somtimes often we spoke of an eye for an eye, or blood money which makes the law itself looks absurd, rather than a perfect process of the law to take its course. The challenge of the unsatisfied beaten man to conclude unsatisfactory punishment being awarded is personal, and does not reflect social justice at work.