One thing I learned as a journalist is that there is at least one disgruntled person in every workplace in America -- and at least double that number with a conscience. Hard as they try, they simply can't turn their heads away from an injustice when they see one taking place.
Hierarchy and Society
Society is strictly hierarchical; a truck driver can say whatever he wants in public, but not so the president. For every whistleblower, there are 100,000 US state employees who see corruption but look the other way.