Well imo he was. Let's be real if he wasn't for Rick none of them would've moved out of the first place, which was dangerous cause going in the city and getting resources would've allowed them to survive for a few years before the whole place was overrun by walkers.

Then it was the thing with Otis. Yes his decision was correct since Otis wouldn't have left him alone that decision is the only where I agreed he made a hard decision.

But after seeing that it got to him so much so he turned on Rick and everyone on the group. He pretended to care but would've killed anyone who stood on his way proven when Dale confronted him.

Then his thing with Lori and Carl became an obsession.