To be honest who cares where the profits go.... To care in where the profits go is kinda thinking like a socialist.. There is no law in the books that says profits have to stay here..
It makes a big difference to me if the roads aren't maintained properly. And if the state bureaucrats can't manage employees under their direct control, then there's no way they can be entrusted to enforce terms of a 75-year-lease with some foreign company that just wants to grab the toll revenue and stuff it into their own pocket.
The roads the state control are being maintained properly now????