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I think it probably comes down to influence and intimidation.
There's a few options to consider:
Alex is loony and so the elites are not threatened,

Alex is telling the truth and the elites are actually practicing black magic, and don't care if he reports it (seems least likely,)

Alex is telling the truth and the elites are not shutting him up because they're all for it. He reveals just enough to make them appear as insane cultists, but not enough to cost them jobs or anything so severe.

I figure, that makes the elites seem terrifying.
I mean I can only speak for myself,
But billionaire sociopaths like the president already scare the hell out of me,
Then add to that they have their finger on the button,
When they're not out in the woods chanting at giant owl statues and eating gold plated fetus.
Again, who would pick a fight with that?

You can't hug your children with nuclear arms.

The sociopathy of the current president is confirmed by $65,000 hotdogs, Planned Parenthood selling baby parts, etc. I don't think it is proven yet that the incoming one is a sociopath. Healthy debate and all, lets save that for the politics feed ;-) I think option 2 re AJ. He's like an ant to them. Insignificant.