I'd be careful with this line of thinking. Cults can often grab well educated individuals. Heck, I've had cult members proposition me on HN.
Cults don't generally grab members by appealing to knowledge. They do it by being friendly, providing community, filling needs. The people sucked into cults generally get there because of loneliness, trama, or high stress. It can be super rewarding when that nice neighbor you know invites you to a social activity sponsored by their church, after all, what's the harm?
Cults love the "love bomb" and it's effective.
Don't underestimate them. I was born into a high demand religion and I'm pretty familiar with the techniques used to get new members.
The defense against a cult is recognizing how they operate. Most cults do the same thing. They don't start you with the weird beliefs, they start you with "we just love having parties together. We're not like other churches, we're fun!"