It was a couple days ago, but I learned that William Shockley, who received the Nobel Prize in physics in the 50's for inventing the first transistors, became a crazy racist eugenicist and was the only guy who publicly supported the idea of a sperm bank for Nobel Prize winners and other smart people only.
He shot his own reputation so bad that even when he won a defamation case against him, he was awarded only one dollar in damages, his reputation was literally worth 1 dollar in the end.