I took an Asperger's test once, my results were nearly off the charts. As a child I was considered gifted, but the stifling environment of the JW's was like living in torture....it was so boring and monotonous. I work in the engineering field as a designer, though would have been an engineer or architect if not for my education being denied by this freakin' CULT. Like the Elder you describe, I get very emotional if I feel I've been wronged, can't let it go, will not back down from a fight no matter what! It's that sense of justice you speak about......it's like I have to right wrongs, can't let things go, things have to be balanced. I also have a nearly photographic memory, can remember every movie I've ever seen. Hell, I can even SMELL some of my memories if I concentrate enough. Therefore, if someone did me wrong 20 years ago, when I think about it, it's like it just happened and I'm instantly pissed off as if it just happened, ready to kick the sh*t out of them if they were in front of me. As I get older, I tend not to want to be this way, but I can't help it and so I'd rather not be around people who trigger me or my emotions.
I'm a loyal person, but once someone screws me over or does me wrong, F*ck 'em! I don't want them in my life. Shunning people who deserve it has never been a problem for me. (Case in point: My sociopath in-laws who are hateful and cruel)
Asperger's is not a fun condition to live with. I'm socially awkward. I think logically right up until I feel hurt or crapped on, then I'm full tilt emotional mess until we fight it our or I kick you out of my life. (in which case I feel like, Good Riddance!!!!)
Your Elder friend is messed up. The JW cult is MORE messed up. This is not a healthy combination. Trust me, I know.