People tell white lies everyday in order to be polite. Imagine the chaos and fights if everyone spoke their mind!

Lying is never appreciated.

Of course I don't like lying, too. But things are not always like what you think. Haven't you heard of "White lies"? A white lie sometimes is good for the hearer. Even the truth is discovered, it would only causes minor discord. For example, on the battlefield, a soldier got shot in his chest and the bleeding couldn't be stopped, but medic told him "You'll be okay!" even he knew his surviving possibility was mere. But however the soldier would be motivated and thought he would survive. This is a white lie. If the medic told him "You're hopeless, you'll die." Well, just imagine the consequence... Back to your example, try to imagine that you told your boss "man, your tie sucks", and what will happen? You can just tell him it's okay, it's a white lie. Because okay only means not bad, but not always means you like his tie. So I think NOT all lies are bad, it depends.