I was speaking of "saints" in the sense of slave morality. Being a saint--as in someone who's obsessed with self-sacrifice and helping others--might indeed be unspeakably hard. But saintliness would be understandable in terms of the mechanism of empathy, which requires self-interest, contrary to Buddhism's denial of the self's egoistic unity. The saint helps others because the saint suffers empathetically when others suffer. This means the saint is emotionally attached to ending others' suffering, as a means of ending the saint's self-sacrificial suffering. Yet a Buddha isn't supposed to suffer at all, not even due to moral, selfless motives.