In trying to get in the head of someone or explain their actions, it's never stupid to know their background. But you're right in that I know nothing about her father's role or ethical behavior and what sort of morality was transmitted down to her from her parents. I'm not too high on coincidences however, and would never leave a fact like that unexplored.
Anyways, I listened to the first two podcasts and watched the doc last night. I'm more interested in the psychology of the easily scammed, the hard to scam and those inbetween than in the psychology of the scammers. Regarding her, the doc enables the viewer to be much more charitable to her than the podcast does. Neither really gets into her background much, like she appears on stage without a backstory. No scriptwriter could get away with that. Is she crazy, malicious, longing to fulfill some childhood need, confront a trauma or something else. I haven't heard anything from her family or friends (did she have any). I suppose that greatly contributes to the mystery.