why have they continually failed to report incidents of child sexual abuse of child members in their congregations to the appropriate authorities?
In essence I would suggest that they must have something to hide.
At the second level I would say that to compensate for the fact that they are selling something dishonourable, namely a false promise of everlasting life, they want to project an image of a divinely blessed church.
Underneath this public facade there is the reality that JWs are just like the rest of the population and subject to crime greed and lust although usually they are kept under control by strict congregational monitoring. However as the ARC found the JW system is an ideal place for paedophiles to operate and the reason is because they operate under the radar in a culture which is infinitely more concerned for public image than helping those who are abused. "Two witnesses" is a heartless excuse to justify their stance-- but knowingly it speaks to the faithful.
I would go deeper and say that JW culture is predicated on two psychologically fixed ideas both of which are devoid of factual evidence. The first is, with only tradition to support it, that the Bible is the inerrant word of God and secondly that from the Bible it is possible to support an idea of paradise and a time when world destruction will come to make way for it.
JWs are constitutionally bound to these flimsy propositions and require constant propaganda to maintain them, the only evidence the JW org have for being right is the smiling faces of a community enjoying a "spiritual paradise".
If JW Org had admitted there was paedophilia in their ranks their public image would be sullied and the evidence for their dream would evaporate. Perhaps this is happening now?