I saw the movie and it was interesting. I met Margaret and her daughter when I visited Hawaii a million years ago when I was a dub. Frankly, looking back, I wonder if she and her daughter were struggling with cognitive dissonance. They both were sickly, couldn't be around people because of chemical sensitivities, and rather distant. That being said, it is a dusty memory and I could have some things wrong, but it was a disappointing meeting for a fan.
Based on the movie, she felt (as many women of that time period) that she needed a man (or figurehead) to guide her. She replaced the abusive hubbies with an abusive religion. Neither one required her to think for herself (until her life was threatened by hubbies and survival instinct kicked in). No doubt the dubbies think the religion was her savior from the abuse...