The way it works is rather simple. The evil genius will look across the people he wants to control for a certain outcome and customize a theme to a topic based in that fear. A simple example of that is fear of lead in water. Why not harness that fear along with a long standing hate of established government and raise fear of fluoride in water? Then there will be people compelled to vote for the one candidate that believes fluoride should be banned from water.
Or, embrace a wacko cult like QAnon. Why not? After all, eventually the USA will be nothing but an evangelical paradise, so, that takes care of Q.
Then there is the seduction of wealth. Hence, Musk hands out Halloween candy in the way of $1 million winners at his political rallies.
I suppose some people would think unethical political practices are okay to justify the end. To me? That is playing unwitting voters for fools, especially when it will end badly for them in the long run. That kind of Steve Bannon politics is nothing but insulting to my intelligence.