Well, I don’t like using the WS-MS terminology, but Main Street will always depend on Wall Street and vice versa because they are basically a two-lane highway. 
WS-MS are terms unique to the United States, I don’t know why, maybe the historians do. You will never hear a German talking about Börsenplatz and Hauptstraße or the Japanese talking about Nihombashi Kabutocho Street and Main Street. I guess people in other countries understand that one cannot function without the other.
And what’s up with all this player-hater tone lately? Since when none of us want to be fat cats?!?