It is really not a matter of what is better or worse for them, or even those affected by their beliefs, (such as innocents being shunned by believers). It is a matter of what is probable, and the potential downside that might result if you miss your target, (and you likely will).
Unfortunately, it is highly improbable that a believing JW, (good life in the organization or not), will accept TTATT openly, without doing so on their own volition. JWs are not unique in this area. All believers are such, because at some level, they want to be. As long as this is the case, you will not have success, and only cause frustration, (or worse), for yourself, and may even cause them to become even more entrenched, as that type of response is often a first instinct of someone experiencing acute cognitive dissonance. TTATT will cause cognitive dissonance.
People will research on their own when they are ready. That is why we have resources such as this website.
To use an oft quoted Buddhist proverb, "When the student is ready, the teacher will appear".
d4g