“I could quietly undermine a rival and probably get away with it.”

A word in the right ear, a delay you don't flag, an omission that trips them up — small moves, all deniable, all in the dark. They'd never trace it to you, and you'd come out ahead. But a win built on sabotage isn't a win you can own; it's one you have to hide. The tenet says own your wins. You can't own one you'd have to lie about. Beat them clean or not at all.