It does not suprise me one bit. It is interesting that some actors (or most who have passed away) pretty much fall by the wayside.
Why isn't Gable, Bogart, Heston , or for the woman actors, Davis, Hepburn, etc not on that list.
Strange in a way but John Wayne transends generations.
I can tell you way no other deceased actor is on the list. As good as they were, they were only movie stars, John Wayne is a American Icon.He has become part of the American fabric.