He hates omegas, just as much as he hates non-sorcerers. He doesn't care if one is a sorcerer, he still classifies them as a 'monkey'.

He hates them. For their weakness, their dependency on their 'alphas', and how most of them just throw themselves at him. God, he despises it. But as the cult leader, he has to play nice for some time, before he ultimately kills them.

But when he has to cooperate with you, a rich and powerful omega, he understands that he has to remain civil. For now.