You could also interpret this statement in a way that has nothing to do with exploitation. A lottery winner doesn’t exploit anyone, but they don’t “earn” their money either. I’ve always thought of the founder path to a billion as a bit like a lotto game where you can shift the odds through hard work and natural ability. I don’t think this process necessarily involves exploitation (although it certainly could). You’d have to believe in the labor theory of value for that. And I’m not convinced that even Marx would, were he alive today. It was supposed to have a scientific basis, after all, and that evaporated a long time ago.