I assume you have a reason for telling me these three stories, but I wouldn't know what it is? Especially since the third one doesn't even involve any interaction with the prison system, that you know of.
They're just interesting stories, man.
I can tell you a fourth story about a guy serving a sentence on work release who worked for us until he got out, and then kept working for for almost a year when he found a construction job that was weatherproof (putting in floors).
I don't know what his crime was but he was solid as a rock because the money he was making was taking care of his daughter (and later, him also of course).
I wasn't trying to prove anything. Anecdatas prove almost as little as untrue facts!