Since the governing body does not allow privileges or consider a JW as an example if he has a gun, then if a JW with privileges is getting assaulted or sees his wife and children getting raped it's also hypocritical to call the police as they will arrive with a gun and they will use it if necessary to protect the victim.
What would this JW that is calling the police say or think if the police were to tell him "you know what, we will arrive however, we will leave our guns in the police station as you are a JW and you do not believe in carrying guns for self-defense. We will kindly ask the rapist and murderer to stop stabbing you and raping your children and we will hope for the best and pray to your God since he will always protect you as your governing body says he will".
If that were to happen, there would be a serious lawsuit against the police for dereliction of Duty. However nothing would happen to the governing body because of their policy.
The watchtowers policy on guns is just one of many contradictory, arbitrary, man-made, ridiculous & dangerous policies that they have.