So many classic Hollywood stars shilled for cigarettes, and then later found themselves dying from using the very producted they promoted. This pair of John Wayne spots is a poignant example of the way perceptions changed. Here he promotes a cigarette brand in 1952:
And here he is in the seventies, having already had a lung removed due to cancer, promoting the American Cancer Society in a series of short spots:
It's sad, but it was a fine gesture for Wayne to make those PSAs.