An interesting analogy. A difficulty I find is how it can be that what is kindness for or to one person, can be cruelty to another. (example - People trying to inflict comfort me is horrible to me, more kind to leave me alone - this is true even where I recognize the intent is to be kind on the other person. This can create a mess because the person attempting to be kind can feel rejected or hurt and I get confused because I kept saying "stop, I don't want that" - not in order to hurt or reject them -but because their attempt was awful to me). Justice is also a concept which is not black and white in my experience.