Bannon and KAC came over to Trump with the Mercers. The Mercers had been supporting Cruz.
The Mercers are linked to Cambridge Analytica. So Bannon & KAC, in all likelihood, are data gurus.
From what I gather, nowadays big corporate job strategy is to plan to stay with an outfit 2 or so years. It's best for your resume, somehow,
Bannon, then would basically be a hired gun. Has the data know how and can name his price, high rollers only.
So, white hat/black hat is not determined on a personal level, rather on whether who is paying them is a black or a white hat outfit. The ones giving them the data to work with.
Explains the Trump WH turnover. Just job market forces at work. Have a kid in the high end market. They have a score, based on education history, areas of experience, years of experience, etc. That score is determined by certain tables, and you use those tables to estimate your worth to a prospected employer when that employer asks you for your salary expectations.