What's with pro athletes smoking cigars? Even not inhaling can still have an effect on your lungs, so why don'?

I've seen Michael Jordan, Paul Pierce, and former Mr. Universe Arnold Schwarzenegger smoke cigars. Why do they do this when they are athletes? And somehow, they are just as good as they have always been (Well, not Mike or Arnie now, I mean they did this when they played/lifted and they were still amazing). Even not inhaling can still have an effect on your lungs, so why don't they just get worse and worse?