'Doing the right thing' was worth $40 million to this Marine veteran and mother of three

After multiple combat tours in Iraq as a U.S. Marine officer, Sarah Feinberg was proud to join the ranks of Booz Allen Hamilton, a prestigious firm headquartered in suburban Washington, D.C., that holds annual contracts valued at $6.5 billion with nearly every U.S. government agency.

Touting itself as one of “the world’s most ethical companies,” Booz Allen has counted former senior U.S. intelligence officials among its corporate officers. Feinberg thought she fit right in, and after taking leave to earn an MBA from the University of Pennsylvania’s Wharton School, she was promoted to a position tracking internal financial data.

She soon made a discovery that would change her family’s life.