So, if I understand what you’re saying, Slobodan, Henri Cartier-Bresson, Andre Kertesz, Chim, Doisneau, Willy Ronis, Walker Evans, Elliott Erwitt, Mark Riboud, Garry Winogrand, Helen Levitt, and Robert Frank , among a multitude I’ve left out, are members of a cult, which is obscure and occult. To paraphrase Wellington: if you believe that, Slobodan, you will believe anything.
And yes, there have been museum showings of street photography. The National Gallery of Art, the San Francisco Museum of Modern Art, and the Metropolitan Museum of Art in 2009 and 2010 had a Robert Frank exhibit titled “Looking In: Robert Frank’s The Americans.” Which is street at its best. A few years ago here in Florida one of our nearby universities had a similar exhibit of Walker Evans’s street work.
You need to get out more, Slobodan.