No, he'd just have to allow that. Anyone can say they're spending all that money on lawyers for purely defensive purposes, but without a public written commitment it's just BS. If the talent leaves and the business dries up, the intellectual property is often the only asset remaining. That's why VCs demand it, so they can minimize their losses by capitalizing on the IP. I have friends whose names are on patents that have been abused, and they're livid about it (or in one case severely depressed) but there's nothing they can do. If the intent is to use patents only defensively, why not put it in writing? If somebody doesn't, anybody else who believes that will be the case anyway is hopelessly naive. It's part of the game plan from before the moment of filing.