Some of the worst corporate disasters of the past two decades were heralded by whistleblowers: Sherron Watkins raised the red flag internally at Enron, Cynthia Cooper let management know of major accounting problems at WorldCom, and Matthew Lee brought problems to his management team at Lehman Brothers. The whistleblowers weren’t able to halt their companies’ declines and—in some cases—faced punishment for calling attention to internal misdeeds. Looking at these examples, it would be easy to say that whistleblowers have little impact on how companies both conduct themselves and weather corporate storms. But that’s not the case.