After an hour of thinking I have to admit that as much as I am against Clark giving up his powers, that is organic for his version. It's one of the things I disliked most about this Smallville version of Clark. lol He never seemed like he truly wanted his powers. So it'd make sense if having kids made him want to be a full time dad without the burden of the world. probably one day he'd return to it but he probably did as much saving as anyone.