Small victory there, until you break down the actual conversation. You're using JW speak (the truth) when you talk to her. I get what you're doing, but you're not helping the situation in the long term. Instead of saying 'the truth', try 'the religion' or 'the corporation' and see how that goes.
She uses the term "the truth", I don't refer to it at all, I don't correct her because that would be a dead give away. I'm letting my actions speak for me as she said.
I don`t mean to sound cynical , do I get the impression there may be a financial loss in your walking away from your family and this religion ?
There is the very real possibility of divorce and selling our home. Which could result in a battle over who deserves what and why. We could both probably come out okay because our home has doubled in value since we bought it but it wouldn't be right. Don't think I could go through that.
Perhaps in your casual comments you could stress the facts that the early Christian congregation seemed to think that welfare within the community was a priority (widows and orphans), The GB couldn't care a fig about the welfare of their followers even for the suffering of victims of sexual abuse
Could be an issue that would reach her if she looked at it objectively. WT maintains that they do help people it just always happens to be "somewhere else" where the efforts are taking place.
How about continuing to take it slowly, keep them on your side but sharing things you have learned which get the family to start thinking for themselves? Make some allies in your mild scepticism, preferably including your wife.
This is my plan for now. My wife was watching the Scientology special on ABC and when it got to one part she said "Oh, that's kind of like us" all I did was give her an odd facial expression like I had never thought of that before.