You live long enough, you'll see your heroes die.
See also:
Robbers Cave:
Milgram Experiments:
https://scribepublications.com.au/books-authors/books/behind-the-shock-machine
Marshmallow test:
https://www.theatlantic.com/family/archive/2018/06/marshmallow-test/561779/
Bystander effect:
https://www.thenation.com/article/missing-story/
I distrust any psychology study that isn't recent and has large implications. Considering I heard this story a year or so ago in a podcast, I'm pretty sure this "expose" is nothing new under the sun.
I do remember posting or reading this incredibly long article on here about the depths of psychological science and the repercussions of these debunks on the field, but I can't find it right now.
Edit: FOUND IT!