You're completely missing the point. Being an asshole is a choice. My point is that anyone can be a consultant that puts their all into it. Being an asshole isn't in your DNA.
A Drill Instructor being a dickhead is also a choice. It doesn't make him any less able to be a leader. My point was, joining the Marine Corps turns weak individuals into respectable men that can command dignity and respect into people. What they choose to do with that transformation is up to them.