The John Wayne version is violent, but while it dipicts people getting shot and stabbed, today's dipictions of the same seem to be more graphic.
I am not a prude, but I find the graphic depictions of violence (blood and gore) to be too much and I used to work in the medical field and saw my share of blood and gore up close and personal.
I agree that movie makers can dipict scenes of violence without going overboard with the graphicness of it. I quit watching CSI because it was starting to turn my stomach.
Just because you CAN make it realistic, doesn't always mean you should.
I have seen some brilliant movies and tv shows that were able to convey the horror of war, the life in the wild west, etc. without making you sick to your stomach.
In fact, to me, actors that can convey by acting this horror are truly great actors while the special effects people are the stars where the graphicness takes center stage and at times even upstages the actors.