That's obvious: the brain is the most energy-intensive organ in the body, so shutting down the brain leads to significant energy savings. The energy saved this way can then be spent on drilling for more oil, and the oil can be burned to power AI datacenters where the real thinking is done.

If you primarily reduce the brainpower of scammers, like Vivek Ramaswamy, I think that would help, even if it reduces overall brainpower.

being smarter doesn't always lead to better decision making - many people overly intellectualise a problem and fail to move to action. Trump is definitely action oriented, a lot of it really dumb, but it does alter the external conditions which may produce better outcomes.