She is not.
She inherited a mess that was not her doing.
She like others mainly Meghan Fitzmartin were given characters with long history and in ALL of them were victims of editorial nonsense.
This would probably fit better as a solo book for Bensia than T'Challa. If they were going to toss T'Challa here-this book should have be going to set up the city and Bensia before T'Challa arrives.
So folks would already know about the crime families and how that city got to it's current state versus this slow burn.