It also 'provokes' emotion... you know? It's not just a piece of work that makes you feel something when you look at it... it MAKES you feel something intentionally. Photo journalists don't just take pictures because there is something to take a picture of... they take them to provoke a response from the reader. Think about all the moving photos in journalism... the point is that all the good ones don't just 'move' you, they toss you out of your comfortable little life!
I hope this is of some use to you!
Jeanette