The fact that somebody is highly intelligent and can reason with apparent logic does not keep them from making highly suspect decisions.
Most of the Nazi's who created the 3rd Reich and the concentration camps were LAWYERS. It was all done legally and so-called reasonably by their standards of the day. Slavery was legal as was Christ's crucifixion.
In all of these cases, it was the intelligentsia who logically decided to do what is now considered unthinkable.

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