It is the mark of a small (as in opposite of great) person to mistreat those below him: in effect, he is trying to forcefully upgrade and elevate himself by demeaning those who are equal to him. But when a small person demeans those above himself, this is because he is deluded into thinking that he should have been given that elevated status and “the world being so unfair as it is”, he must get even somehow. Such people do show temporary kindnesses, too, however, but only to those who are below them. With this selective kindness they pretend to show to the world that they too are human. Nothing is further from truth, though.