It does have a use but not in the colloquial sense, history is plastered with bad winners yielding to their predatory instincts and a malicious Jinn is one of infinite ways you can visualize something that pulls/pushes into the abyss for a competitive comparative sense of superiority. Understanding it doesn't make it happen less because the phenomena exhibits in circles that mock thought itself. But taking it into consideration in thought does tend to improve the outcome of novelty the same way an engineer looks as Murphy's Law as a warning not to seek positive thoughts for the sake of it but look at failure modes because they're central to good design