This is what the user @A fandom user thinks because of the following reasons:
1. He is truly loyal to his superiors Dooku and Sidious. Just because he says he’s not in the war for Dooku’s politics that does not mean he’s not truly loyal to him. He just doesn’t like his politics. He shares power with him.
2. He genuinely loves and cares about his pet Gor as he is visibly distraught upon witnessing his death, and vows to kill Jedi to avenge him.
3. He has some sort of bond with his medical droid in his lair.
