That's the advantage of the path of the Alphas. It is their reward for the duty of building a settlement for their people and growing the population. As for Omegas, their path is the killing path. Instead of killing and going on a rampage, he has helped Sauron build his pack. It is the best decision for him but it helped Sauron more than him so it feels like he is working for someone else.
"This sucks." He thought to himself.
He wants to go on a rampage. His inner beast wants it too but he knows that he shouldn't. He is not a fool. Sauron is already powerful like this. If Sauron had his full divine ability then he would be able to break his limit and become much stronger. That means Sauron will go on a rampage. He will begin to kill pack leaders wantonly because it is prey at his level that will strengthen him the most.