I suspect that the type of person who is capable of becoming a whistle-blower, is also a lot less institutionalized. I'm not surprised that he didn't finish high school, if he is an extremely critical thinker. There are a ton of things that don't make sense about our education system. It certainly doesn't make him dumb.

Whistle blowing can be considered an extremely irrational act. It is basically ruining this guys life. Most people would never accept that sacrifice on the off chance that their small action might contribute to positive change in the world, for future generations. It takes a certain type of person to do it. Someone who is so irrationally devoted to the truth that they can't help but ruin their own lives in the name of what they perceive as the truth. If he is sincere in his motivations, then I'm sure this isn't the first time that he has bucked a system.