Nobody working at Boeing of FAA right now has witnessed one during their lifetime - all they saw were cautionary tales.
"Based on data from the Occupational Safety and Health Administration, only 21% of the 1800 whistleblower cases reviewed by the agency in 2007 had "a favorable outcome" for the whistleblower. The GAO found that the key issues were lack of resources for investigating employees' claims and the legal complexity of whistleblower protection regulations."
The SEC's may not be typical of whistleblower programmes in the USA, but I'm not sure presenting it as uniformly awful across the board is true either. There definitely exist those who have gained (at least monetarily) from whistleblowing.