"Occurrences like this astonish because they conflict with the image we have of man in harmony with himself, coherent, monolithic; and they should not astonish because that is not how man is. Compassion and brutality can coexist in the same individual and in the same moment, despite all logic; and for all that, compassion itself eludes logic. There is no proportion between the pity we feel and the extent of the pain by which the pity is aroused: a single Anne Frank excites more emotion than the myriads who suffered as she did but whose image has remained in the shadows. Perhaps it is necessary that it can be so. If we had to and were able to suffer the sufferings of everyone, we could not live. Perhaps the dreadful gift of pity for the many is granted only to saints; to the Monatti, to the members of the Special Squad, and to all of us there remains in the best of cases only the sporadic pity addressed to the single individual, the Mitmensch, the co-man: the human being of flesh and blood standing before us, within the reach of our providentially myopic senses...
In The Brothers Karamazov Grushenka tells the fable of the little onion. A vicious old woman dies and goes to hell, but her guardian angel, straining his memory, recalls that she once, only once, gave a beggar the gift of a little onion she had dug up from her garden. He holds the little onion out to her, and the old woman grasps it and is lifted out of the flames of hell. This fable has always struck me as revolting: what human monster did not throughout his life make the gift of a little onion; if not to others, to his children, his wife, his dog? That single, immediately erased instant of pity is certainly not enough to absolve Muhsfeld [a SS man]. It is enough, however, to place him too, although at its extreme boundary, within the gray band, that zone of ambiguity which radiates out from regimes based on terror and obsequiousness."
--- Holocaust: Origins, Implementation, Aftermath / Omer Bartov