I was an elder for over 30 years, but I was a sincere hard-working one and I loved the brotherhood, and sadly, I believed it was God's Organization. Those are the only reasons I would ever have served.
There are enough people on the 'inside' that can get info to all of us while they are on their way out, without you putting yourself in such a dishonest situation. Don't do it for me.
Additionally, you think now that you might be able to help someone, with the inference being that you will help point out that the WT is a lie. Well, maybe, but I think people don't listen. They either believe or they don't. They either go for the reason they believe or for social and family reasons. You aren't Jesus Christ, and you aren't going to save anyone.
A fine example in leaving would be the best witness you could give, and you could unload all that dissonance.
Brant