Artists tend to be people of strong character and opinion. Often they are dismissed in our culture if they don't fit a certain mainstream media mold. It's a reason why filmmakers are now releasing films online. Art, in any form can invoke various emotions and actions. I think some can be frightened of the power that a simple image can invoke and that's why they tend to shy away from it. But art documents moments in our history and that image is often what many people remember of a certain time.