I'd guess that he's saved more than he's destroyed.
No, I don't see it. And I don't think the world's crumbling. You've got to give these people a chance. There are bad people out there, yeah. Really bad people. And I've met some of them. But most of the people in the world are good, and they've got good hearts, and you can't just slaughter them because living for four hundred years has made your glass permanently half-empty.
The problem isn't with them - it's with you. You've lost your faith. You've lost your hope. And you've stopped seeing that no matter how bad things get, there's always more good in the world than bad.