I agree that there have to be some changes to Watchtower policy on this but I don't agree that just because someone is convicted of this that they have to be treated like a pariah for the rest of their lives. There have to be reasonable steps to protect other potential victims but that doesn't mean that they have to live outside of society and they don't get the same rights that other people get. edit: that includes the right to be considered until proven guilty by evidence and not for a lynch mob to be formed immediately just because of an accusation.
I know of a gay guy from China he married an American who was convicted at 19 for what is classified as Child Abuse and now my friend cannot be sponsored for citizenship by his husband. They have no intention ever of having children, and my friend is not at risk from harm from his husband but they are not allowed to file for citizenship ever through the person that he loves.