I missed you at Defcon for multiple reasons, not the least being the opportunity to get your feedback on the talk as delivered. Maybe we can run a pan-NCC internal conference this fall and see what everybody else is working on. Chicago is nice and central between SF and Manchester.
A big part of the talk was my theory that our industry can no longer claim neutrality; like medicine or law, our actions have become innately entwined with ethical dilemmas that I feel to be better dealt with explicitly and ahead of the moment of decision. I don't think you necessarily disagree, since you lay out two lines you are not willing to cross even if you do not specify your reasoning.
I expect somebody as seasoned and experienced as you can make these decisions subconsciously without violating your basic principles. Younger, less experienced individuals may find this to be a greater challenge and they were the real target of my talk.
In my eyes your actions definitely make you a white hat, even if you avoid the label.