According to Chapter 12, what defines the nature and role of a saint like Sai Baba, and how do they differ from God?

Chapter 12 of the Shri Sai Satcharitra explains that while God's incarnation is for protecting the virtuous and destroying the wicked, saints are uniquely distinct. The chapter posits that saints are, in a sense, greater because they treat the virtuous and the wicked as equals, showing no partiality. Their primary role is to set the wicked on the right path, their hearts overflowing with compassion for the distressed. Sai Baba is presented as the embodiment of this ideal, a 'king of knowledge personified' who holds extreme affection for all beings while remaining detached and renounced, viewing a pauper and a king with the same equality.