How do individuals change a system that rewards loyalty, secrecy, and praise to higher ups who run with the status quo way of thinking? Shit, I even recognize that if I was put into a middling position at the CIA/FBI/ETC that I would probably forgo several of my personal moral/political positions to keep and progress in my job.
Changes can come externally through art and civil demonstrations of our power, but really, it may be that our best path is the slow one through education, which is slow, and long, and again, very slow. And very painful.