Jon Huntsman says the same thing in his book "Winners Never Cheat". Incidentally the company he started is a multi-billion dollar company, so I would not say it is essential to tell "soft lies" in order to succeed. He gives some good examples of how being honest helped him get ahead in the long run. My personal gut answer to these type of moral questions is that if you have to ask the question you (most likely) shouldn't do it.