Honestly, I think it's best to control Madelyn Stillwell, after all, she is a senior member of Vought and possibly the future CEO of the company.
Controlling it is the same as controlling Vought, which would be very useful as it is one of the largest and most powerful companies in the world.
so far, the novel is being amazing in my opinion, only the slow releases drive me crazy, but other than that, everything is perfect.