I think people have covered the ‘privileges’ quite well.
But there are downsides too.
I don’t know if you are aware, but the Jehovah’s Witnesses are obsessed about sex. Either who you should not be having sex with dash you’re okay in this respect as you’re married but anything else is wrong.
But you or he may be disappointed to find out that oral sex was banned for Jehovah’s Witnesses back in the 1960s, if my memory serves correctly. I don’t think it was ever allowed, per se, but they went out and explicitly (LOL) banned it, and then a few years later said it was none of the Elder’s business for a short while, before banning it again.
This opens up an interesting experiment. You know how they say that the way to a man’s heart is through his stomach?
Well maybe the way to get a man out of the cult is through something a little lower.