Defining integrity is difficult. Once understood as "telling the truth and keeping your word", it was about following not just the letter but the spirit of the law. But in a moment when workplaces are becoming more diverse, global, and connected, silence about integrity creates ambiguities about right and wrong that make everyone uncertain, opening the door for the minority of people to rationalize selfish behavior. Silicon Valley expert Robert Chesnut shows that companies that do not think seriously about integrity are destined to fail.