Hi Slobodan,
If you think street photography can be done by any MonkeyCam, let's see a few of your best street shots. Street photography is the most difficult genre of all. By comparison, landscape is an afternoon tea party.
What was Henri's influence beyond his faithful? Are you serious? Do you know anything at all about the history of photography? He was a prime mover in the establishment of Magnum, which continues to be one of the finest photo agencies in the world. But more importantly he influenced a whole generation of photographers who showed us what people around the world were like: Chim, Doisneau, Ronis, Evans, Erwitt, Riboud, Levitt, Frank, Winogrand, Friedlander, Koudelka, to name just a few of the contemporaries who admit his influence on their work.
A couple generations of street photographers have followed those contemporaries. Steve McCurry is one member of those later generations, and all have been influenced by Henri's work. It's neat that Ansel has gotten medals and has "advocated" for things like Kings Canyon. But you know damned well I'm talking about artistic influence, not political influence.
I think Ansel was a great technician. I read all his books and, at one point in my film days, even cooked up some one-of-a-kind developers based on what I learned from him. But post-processing isn't art. The art takes place at the moment that shutter clicks. It's interesting that Ansel's most famous photograph is Moonrise, and that that one happened by pure chance. When he stopped his van and got his stuff on top for the shot, forgetting his light meter and having to guess at the exposure, that whole situation was very close to what happens in street photography. And it was the best thing he ever did.