So the LDS Church teaches you salesmanship techniques without ethics? Why do they do that? I’ve never heard of any other religion that teaches sales.
Just saying that my perspective is slightly different than your question. If out of context you are asking whether ethics is an issue I would say that most likely the young ascending salesmen in the corporate world are doing everything they can to be accepted and use all the methods to make the deal. If their ethics differ and they need to fudge a bit they will.
Young Mormons are no different, however are way ahead of the game because of their ability to handle concepts.
The "milk before meat" video of a Mormon class, shows how Mormons are taught to sell their religion and avoid revealing truths at too early a stage to potential converts.
You have NOW!
http://www.holyobserver.com/detail.php?isu=v02i05&art=amway