Except that there isn't even any real evidence that 2nd hand smoke even has a real impact. And yeah, you're right, the workers don't have to work there- they choose to. The difference between asbestos and smoke is the asbestos isn't obvious like smoke. Getting rid of asbestos is just standard safety. You can see and smell smoke, so if you don't like it, leave- it's not your building.

Besides, I done seen some show on people in japan that live to like 120 yrs and smoke everyday.