You gotta keep in mind that he's a veritable god living among normal mortals. There'd only be so much he could do directly without essentially "enslaving" manking to the horrific realization that there's someone out there that could erase them at a whim. Awe can turn into envy and fear very quickly, and charlatains wouldn't be above rilling people up against him to prop themselves up. And demands would never be far from him, I mean, no offense, even if this is comming out like it, be here you are demanding even more from him. Others would demand even more. And more. And before you know it, he is the one enslaved.
Plus, he saved 99,9% of humanity once already, that's plenty of weight for one single person to have carried. He isn't the planet's buttler to police every street and whatnot, forever, "under the threat of being called a bad person if he lets bad things happen".
He did better the world. More than "angels" ever managed after who knows how many do overs: not one person died in the war against the monarchs. It did take effort.
