Street photography and fine arts, I need to find some spot in between.

I started trying street photography several months ago, after I feel tired of landscape or still life (not I am any good at those). So I starting shooting on the street, and looking others' works. I spend a lot of time on in-public.com. There are several artists whose work I quite admire. Nils Jorgensen, Narelle Autio, to name a couple. There are also some work that I simply couldn't get. For the rest majority, I have this strange feeling that there is something missing. The same feeling bothers me all the time when I look at my own shots. For example, below is one of my favorites shots since I start shooting on street, and others like it too. But the more I look at it, the more I feel that it is not the kind of photography I want to do.
I am not sure exactly what is bothering me until I watched "The Impassioned Eye" a couple of days ago. I can't say that I appreciate all of HCB's work. But a large portion of his work has such an elegant fusion between fine arts and documentary. For example this one and this one. That, I think, is what is missing in lots of street work we see today. What gets on my nerve most is the statement that, to do good street photography, you need to get close. No, that will make your photo bold, shocking, interesting, or maybe funny (like the one I posted). But that will not necessarily make it aesthetic, or make it a good piece of visual arts. If street photography and fine arts photography excludes each other (which I don't think is true), then I need to find my balance point. I am not good at writing, even in my mother tongue. But I feel that I need to put these thought into words, so I know clearly about the direction I am heading. Also I'd like to hear opinions from you guys. Please bear with me if this makes an awful reading.