Hope most people are evolved that much, that everyone can be a channeler and choose beings to work with by attuning their frequency. If you look through polarity glasses the dark entities knock on your door and offer service for energy. While light beings have to honor the first directive of non intervention.
Means to work with a light being you have to take active choice but with traps in your world you can took a dark entity by accident and have problems to get rid of it. Classical voodoo and similar magic on your planet is about make contracts to dark beings, that execute the curse job. Here again playing with voodoo or séance can result to an unwanted attachment, what in normal for open minded people should no problem to order it to leave. But you live in a world of mind programming, where effects are ridiculed and victims are abandoned.
Remind your childhood? Have you ever seen shadows or beings that your parents ridiculed then, while cat or dog in the house look at the same? This is why your club of elites is successful using the occult right inside your society against society.
But that’s not all, strong bonds to dark entities results to intense interaction that was and is used by magicians in public. Where the channeler can use entity powers for energy exchange, most these channelers are marked with occult symbolism to prove the bond to their entity. Strong dark entities can smoothly enable an entertainer to do high end so called illusionist tricks that normally no one can explain. Let something fly, teleporting, move through walls, disappear and reappear matter. The success is to use such occult powers in society with a ridicule paradigm, there are many in the footsteps of Aleister Crowley and most educated in high level Masonry environments. From my point of view it’s just a foul game to muck people with occult trickery to make them dumbfounded. Within awakened societies such trickery is common knowledge and nothing to wonder about.
So take care, whom you invent into your energy.