The consequences to Sophia for not doing Aiden's tasks have been pretty much bupkiss so far. If there is any legal trouble Carl has already said he's got it covered. So as long as she doesn't do anything stupid like go on the subway at night, she seems to be good.
Besides, there seems to be little to no storyline planned if you send Dylan to boarding school, except for the Amber storyline.
Making a threat is one thing, and Aiden certainly has the rep to make it sound like he can follow through. But we have yet to see any actual evidence that he possesses the power to make good on his threats if you send Dylan to boarding school.
I said this before, you are beating on a technical limitation. He absolutely can't steer the novel in the direction of gang wars and legal proceedings.
Carl's big mouth is Known about, his talk about it is all covered is in the air. Richard Murphy is a fact in the game. He is the big lawyer who has proven himself in this world that he is undefeatable. Atleast no one has till now.
Your logic is flawed here. What do you want him to show. Legal proceedings between Richard Murphy and Carl's lawyer. 500 renders awesome court room drama. Or a big gang war. Or a completely battered Dylan with broken hands or legs. Or maybe a dead Dylan. Is this the direction you want the novel to go.
He is not showing because it is not the purpose of the novel. Everything has been setup to fit things in place.
The kind of limitation you are beating ois stupid. Like after Sam's last scene, if Sophia now refuses him next scene, nothing sexual between them will ever happen in the game between them. The storyline ends. Does that mean a single refusal in the real world would end it, No. It is just a limitation of a solo developer making a game. Tons of more limitations can be pointed out in regards to humans.
Hence, what you are saying is not backed by logic. Because the facts of the game are the principal even the Police can't do anything to Aiden. You have any proof against that. Aiden has connections with criminals is known in this world to the Principal of the school too. Things that are facts of the world. Just because it has not been shown doesn't mean it doesn't exist.
Even Morello is called a Mafia boss. What mafia like thing has he done. Nothing really. So by your logic is he not even a Mafia boss and just giving empty threats.
Since we know L&P won't be including things like blood and violence in his novel it is easy to just label it as empty threats. But in the reality of the world none of it is.