It is possible that Barr was a totally ignorant JW believer like your mother. That is not an insult to your mother.
Women are never in on the secrets in that cult. They can't move a single rung up the ladder toward the ivory tower of the GB.
But in my opinion, every rung a man climbs makes him slightly more responsible for his actions and lack of actions for or against ending the madness.
A Nazi soldier watching the death marches and even having to shoot the stragglers could be likened to a elder. He has cognitive dissonance and may never overcome it. He has some guilt-responsibility for carrying out his orders, but not nearly as much as Hitler himself or Hitler's generals.
So Barr could have kept a blind eye to the realities. It would have been a deliberate act to remain blind. That makes him just as responsible as someone who looked at (and understood) the terrible goings on and did nothing. Barr had knowledge of how the light got brighter, by the two-thirds vote and by pressure to conform by the likes of Jaracz or Fred Franz or whoever. Barr had secret knowledge of why blood fractions were considered okay vs. total abstinence. He knew how legal aspects of the doctrine ruled over decisions made. Choosing to be nice and kind are all wonderful, but he still had knowledge of such stuff and didn't go up to hospitals and tell members about that knowledge when their loved one was about to die for their obedience to the doctrines.
I credit that such people are victims of victims. I get that elders, C.O.'s, and D.O.'s are in a mind-prison, but a line has to be drawn somewhere. I fully understand the ex-JW or non-JW that draws that line way to the left (at the adult member or elder), I just disagree and draw it way to the right- at the inner sanctum of the ivory tower. I just cannot overlook the information available to these guys and say they are just like some "sister" in that they were ignorant of how they became victims of victims. Ray Franz is more forgiving of the cognitive dissonance than even I am on that. But I look at Ray Franz as someone who felt responsible for what he learned and could not participate anymore. I expect that from all the GB.
Bottom line- I am not happy that Barr died before he could do similarly to Ray Franz. But in the light of the fact that he had enough time to do just that in all those years, his finally passing won't cause me to shed a tear. The only happiness I derive is that this "overlap" thing will look more and more ridiculous as they are forced to get newer younger GB members.