The anti-smoking people are deluding themselves if they believe that showing damaged body parts dissuades people from smoking.
Our minds work based on what is personal, what is immediate, and the effort it takes.
How many people look at an ad that shows a damaged lungs that may take 20 or more years to create and think that is what I am doing to myself so I will stop smoking today? Zip, zero, nada. If I stop today it will take 5 years before my lung gets healthy. Neither is an immediate impact so why worry.
When they look at the picture of the lung, it is not my lungs so why worry? There are many people that live to be old and smoked all their life so why can't I be like them? Its not personal.
Have you ever talked to a person that has really tried to quit smoking? It takes a total commitment that must last a life time. The ads never take into account that it is hard work to quit.
Who is paying for the ads? It is non-smokers and the writers are making them to appeal to those paying the bills not to prevent or stop smokers. The non-smokers justify why they don't smoke based on health and don't address why people do smoke.
The people that write the non-smoking ads are self-serving and really don't care about anything else or they would change the ads and see what does work.
I have never smoked, because my Dad (a life time 2-3 packs of Camels a day) smoker gave me a bit of advice. He address all three issues.