Smart people still work for trump regime. Lets put it this way - it won't be viewed kindly by history neither. Yet it keeps happening, people have various priorities and high intelligence doesn't guarantee high morals. musk keeps doing nazi gestures and behavior and clearly his values are not far neither, yet he is supposedly smart and definitely doesn't have to behave that way, its a personal choice.
Also, a lot of people are trivial to manipulate and have emotional weaknesses that are easy to abuse by skilled manipulators, smart or not.
https://en.wikipedia.org/wiki/Ettore_Majorana
Majorana basically disappeared in 1938. It has been suggested that he could see the feasibility of weapons using fission (Leonardo Sciascia wrote a play about this). Opinions vary and the issue is cloudy and ripe for fiction.
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