We have to make a distinction between safety and aggressive selling. I have been to many parts of the world were aggressive selling is part of the culture but that is not related to safety.
My experience at Westin Lagunamar Cancun was quite the opposite actually. In March we went to the TS presentation (we got $175 resort credit). Of course my wife and I discussed before that we were not going to buy anything. To my shock, towards the end of the presentation my wife said that she really wanted to buy unless i veto-ed. Part shock and confusion, part that i did not want to offend my wife in front of other people, i did not show much verbal opposition and we signed the papers.
We went back to the room, discussed it extensively over the next couple of days, did more research (thanks TUG!) and decided to rescind. We went back to their office (third or fourth day after the presentation) prepared for the whole singing and dancing and ready for a terrible experience. We actually made sure we ate before, just to show you what we were prepared for. The sales people looked disappointed when we told them what we were there for but to our surprise they acted cordially. They gave us a sheet of paper to sign, they signed, made a copy for us and that was it, we got out in less then 5 minutes! The salesperson there (Richie) even mentioned few times "do not worry, this is Westin". I was actually really impressed.
I am not going to speculate on your motives but I see that you are suggesting that those that do not agree with you on this matter are less than honest. Thank you.