Justice has nothing to do with expediency. Justice has nothing to do with any temporary standard whatever. It is rooted and grounded in the fundamental instincts of humanity.
Society cannot exist without inequality of fortunes and the inequality of fortunes could not subsist without religion. Whenever a half-starved person is near another who is glutted, it is impossible to reconcile the difference if there is not an authority who tells him to.
We cannot stop every act of senseless violence. We cannot know every evil that lurks in troubled minds. But if we can prevent even one tragedy like this, save even one life, spare other families what these families are going through, surely we've got an obligation to try.
SOCRATES: Perhaps we may be wrong; if so, you in your wisdom should convince us that we are mistaken in preferring justice to injustice. THRASYMACHUS: And how am I to convince you, he said, if you are not already convinced by what I have just said; what more can I do for you? Would you have me put the proof bodily into your souls?
The judge weighs the arguments and puts a brave face on the matter, and since there must be a decision, decides as he can, and hopes he has done justice and given satisfaction to the community
Imagine a legal system in which lawyers were equated with the clients they defended and were condemned for representing controversial or despised clients.