There is a kind of similarity in witch trials in Salem and accusations of sexual harassment in the USA. Just the fact of being accused is the same as being convicted.  One can perhaps trace this to the Puritan roots of the USA. But to me it seems to be already mentioned in the Gemara itself: "Lashon hara [slander], if it does not convince completely, at least it does so by half." And this dynamic seems to be a regular human trait --nothing to do with Puritans. Just accuse someone you do not like of some dastardly, wicked deed, and you already get at least half of what you want. There is no loss.  You get everything or half. But you do not lose anything--[at least at first]. Eventually, the ball  bounces back.

[The trouble of tracing this to the Puritans is that you find it enough in England and on the Continent to suggest it was more wide spread.]