that all who believe and repent may be saved

Did he say anything about those who neither believe nor repent but who still manage to lead good lives? What if there are people who believe, but who rob and cheat people all their lives, abandon their wife and kids, drive drunk, etc., but then repent quite late on, sort of thing...do they get more of a leg up than the non-believing, non-repenting good guys? Have you thought that through? Has God thought that through?