I wouldn't be so sure that he has such a "happy life"! I don't see how anyone could be peaceful, happy and contented in their life when they are so consumed by anger, hostility, rule making, maintaining absolute control at all costs, and wallowing in every imagined offense that anyone has ever done to them! He reminds me of Dustin Hoffman's character in the movie "Rain Man". Remember? He kept a notebook entitled "Grievious Offenses Committed Against Me" or something like that and he'd write down every tiny little slight or imagined injustice done to him. Every time his brother did something he didn't like, he'd whip out his notebook and start writing. That's just not normal!
No one is ever going to be able to follow his ridiculous "rules" closely enough to suit him or conform to exactly what he wants them to be ... not his wife or his child or his inlaws or anyone else. He's going to be constantly frustrated and angry and will make all those around him miserable too.