User blog comment:RigbysMom/Who gets the inheritance?/@comment-3257939-20161104053443

It is because of the oldest child rule. Consider how old Jacques appears to be. Weiss is currently his only option for when he finds himself forced to hand down the company. Even if he'd prefer to give the inheritance to Whitley, the kid is still not ready unlike Weiss. Besides, how do we know Jacques hasn't already began to train  his favorite child? As Phantom said below, a company can have multiple heirs so  Whitley is not out of the question. But he's not an option either for the moment.