>>2977I almost agree with this, but then I remember that there's a good side to subjective judgment as well: forgiveness.
Both the person who pointlessly slaughters an innocent child, and the person who kills to avenge something horrible done to them or their loved ones technically committed the same crime—but in my opinion, the sentence should be more lenient for the latter, who had a more justified motive, or at least an understandable reason to do what they did.
I think there are probably clearer, more poignant examples, and even actual cases, but I can't be bothered to think of them right now. What I'm saying is, there should be some flexibility in sentences, and machines would be ill-fit to know when using it would be appropriate.