What's the criteria for "good" here?
Just so I am clear here, you are saying that everyone you know who has even tried pot has ended up as someone whose life is worse than yours? Or who is someone not to be emulated in any way?
I guess I am a bit confused by your statement. I know very successful and generally wonderful humans who smoke pot on occasion. I also know many who, while they may not smoke pot now, have used it at one time or another. I'm talking about doctors, lawyers, executives, professors, cops, firemen, soldiers, etc. I'm talking about people who are outstanding role models for just about anyone. So when you say "I have no desire to end up like any of them" I'm just a bit confused about what exactly you mean.
Also, I am willing to bet many people you may think deserve to be emulated in some way have also taken a puff or two in their day.