Looking back (in the 70's / early 80's - different era) I think the other reason could have been boredom and loneliness.
Fewer women had full time jobs and careers and I'm sure the Jehovahs Witnesses appealed in no small part because of the social aspects of it all.
when you actually met these men they were very normal and even docile
I always remember them being really nice guys, often much nicer than the brothers / elders.
There was a sister who's house backed onto ours (great short-cut coming home from school!) and her husband kindly taught me fly-fishing. I can't recall the elders ever doing anything positive in my life.