Oliver and Tomas were extremely xenophobic individuals. Their belief that anyone that was not a member of the Heavenly race was equal to a beast was engraved in their souls.
Their power and knowledge allowed them to understand the forces that make the universe work. Their grasp of fate was high enough to know how it can impact the actions of weak life forms.
They understood that as Soul Forging existences they had great resistance to its influence.
Due to all these factors, despite the Sage's power and mysterious nature, which could draw the attention of many, they did not feel close to him. The disgusts they felt when he spoke to them with such intimacy was immense.
The truth was that if their minds were not so closed and their wills were not filled with loath to everything foreign, the words of the Sage would have affected their attitudes.