Relaxation, social wapon ("got a light"), makes you less likely to get Parkinson's disease, alleviates the symptoms of schizophrenia..
So it's common knowledge that smoking has the health benefits mentioned above?
Understand that "outweighing" other options is a very much based on the sentimental approximated pros and cons of the use rather than pointing out something tangible and provable. If I'd be a schizophrenic smoker with a high risk of Parkinson's, I wouldn't care to complain about about something very bad happening to my lungs as it would be "outweighed" easily.
Why?
I'm the sarcastic ghost of Socrates.