I have another name for what they're terming whistleblowers, and that's righteous heroes. From Bradley Manning to Snowden. They're people of conscience who are unwilling to turn a blind eye to the crimes of our government. And thank goodness for them.
Under the natural course of things each citizen tends towards his fittest function. Those who are competent to the kind of work they undertake, succeed, and, in the average of cases, are advanced in proportion to their efficiency; while the incompetent, society soon finds out, ceases to employ, forces to try something easier, and eventually turns to use.