ADDED: I'm giving this post the "using children in politics" tag, even though it's not quite what I have meant by it in the past. But the commenter HoodlumDoodlum said "This blog usually opposes the use of children to make political points or advance some cause." I responded:
This isn't a case of people putting children in political ads or having children carry signs in protests.
The photographer got in there to take the picture and the usefulness of the picture was perceived after the fact and largely occurred through viral sharing as it affected people.
That is propaganda but the child is real and no one chose to put that child in that condition. I think it's important not to look away from reality.