This is how Warren Buffet handles it: (from his memo to managers)
“The priority is that all of us continue to zealously guard Berkshire’s reputation. We can’t be perfect but we can try to be. As I’ve said in these memos for more than 25 years: We can afford to lose money – even a lot of money. But we can’t afford to lose reputation – even a shred of reputation.” We must continue to measure every act against not only what is legal but also what we would be happy to have written about on the front page of a national newspaper in an article written by an unfriendly but intelligent reporter.
Sometimes your associates will say ‘Everybody else is doing it.’ This rationale is almost always a bad one if it is the main justification for a business action. It is totally unacceptable when evaluating a moral decision. Whenever somebody offers that phrase as a rationale, in effect they are saying that they can’t come up with a good reason. If anyone gives this explanation, tell them to try using it with a reporter or a judge and see how far it gets them….
Somebody is doing something today at Berkshire that you and I would be unhappy about if we knew of it. That’s inevitable: We now employ more than 250,000 people and the chances of that number getting through the day without any bad behavior occurring is nil. But we can have a huge effect in minimizing such activities by jumping on anything immediately when there is the slightest odor of impropriety. Your attitude on such matters, expressed by behavior as well as words, will be the most important factor in how the culture of your business develops. Culture, more than rule books, determines how an organization behaves.