You're pointing out the asymmetry of the value, rather than disputing it. The information the insiders are trading on is relevant to the stock price (i.e. valu

You're pointing out the asymmetry of the value, rather than disputing it. The information the insiders are trading on is relevant to the stock price (i.e. valuable to stockholders), the poker card info is valuable to the other players (or cheats wouldn't be after it), and the target of the blackmail has something important to hide or they wouldn't pay up.