I think the point is to focus on an apparently randomly selected individual. We are now free to wonder what it is about that one that's special or interesting.
If we're not willing to at least imagine that there is something special, or that it stands in for a singleton that's special or valuable (hence the title, I think), I think the image fails. I do not think the random part is special, but I am willing to let it stand in for a soldier, or any other individual with that individual's uniqueness and value, otherwise lost in a crowd. So, for me, it works.
It's not gonna set the world on fire, it's not the best picture ever, but it ain't bad. I kind of like it.