This example seems to be survivorship bias. Personally, if someone approached me to suggest backstabbing someone else, I wouldn't trust that they wouldn't eventually backstab me as well. @bear141 said "People should oppose openly or leave." [1] and I agree completely. That said, don't take vacations! (when Elon Musk was ousted from PayPal in the parent example, etc.)
[1] https://news.ycombinator.com/item?id=38326443