Good thought Island man. If all the world were JWs, and thank goodness it can never happen, the leaders would become empowered to rule with unchecked tyranny in a stale and regressive dystopia.
The personal beliefs and whims of the GB would be the universal rule which would not countenance private thought and natural human activities and impulses. Suicide would become the main way of escaping this false paradise.
Fortunately the JW org will not withstand the scrutiny offered by modern internet technology and they will never succeed in the new scientifically connected world to promote their abusive and misguided "Bible-based" ignorance.
The Roman Church tried such a paradise back in the Dark Ages.... which is where this idea belongs.