He started to dislike the first sage when he was approached by the racial council and offered a deal to give up all his responsibility and right to Soverick to them. He had no choice but to agree. He was an Origin god and also a battle sage monkey. He couldn't fight back or refuse. The smart decision was to agree to the deal. He even benefited greatly from it. But that doesn't mean he is alright with it.
The thing he hates the most is oppression. He will never submit to oppression. He will keep on fighting even against the heavens. The other thing that he hates is disappointing the hopes and dreams of people that rely on him.
He didn't give up even when he was near death during the war against the Vipers. He continued to fight. He was willing to give up what little life he had just so that the hopes and dreams of the battle sage monkeys will not be let down.