Kind of like Like Saul with the Witch of Endor?
No problem, I just wanted to be clear.
As for Saul, at least he conjured a prophet of God.
These other geniuses conjure demons to do their bidding, never thinking through the fact that once they bind themselves to a demon, the binding works both ways. The demon obeys out of compulsion, not love. In fact, the demons hate their enslavers.
Then when these geniuses die (and many times even before that), God frees their demons, who then promptly turn on their hated enslavers.
Like I said, geniuses.