I don't believe that he is addicted to porn or sex or anything. He uses "addiction" and "repression" as excuses for his behavior. He's a man in his 40s with a wife and children who has spent years exchanging sex chat on the internet and visiting prostitutes for paid sex. He's not an addict. He's an inconsiderate asshole.
He blames the WTS --the very organization whose rules forbade his actions-- for turning him into a helpless nymphomaniac. Remember, nothing is ever his fault. Just as he blames Kim for the scandal that is ruining him, and just as he blames his wife for refusing to understand his complex sexual and emotional needs, he blames "addiction" and "lack of penis mastery" for his selfish and inconsiderate behavior.
It's always someone else's fault.