I've heard such justifications for submitting fraudulent college applications, cheating in college, doping in sports, etc.
I've done significantly better than my peers with salaries, without lying about it.
Remember that fable about Steve Jobs' dad painting the back of the fence that no one would ever see? My father once told me that honor is what separates men from animals. Honor is what you do when nobody is looking. How much is your honor worth to you? I'm no saint, but wanting my father to be proud of me is worth a lot to me, even though he's passed away.
Thats great. But the other strategy, of engaging in successful negotiation tactics, has also worked out quite well for me.
So it seems like the strategy can be successful.