Maybe this guy's passion is making money to provide for his family.
This line of comments did start with >yeah fuck this dude. he takes some boring fucking photos.
Not>that guy is so talented and passionate, how did he hit the main vein?
Also, those photographers you refer to are likely not the sort of commercial successes that commercial photographers are. I have a friend who was a successful wedding photographer who now runs a wedding photography software company, and the majority of his real work, the stuff that made him a financial success, was business-mindedness, marketing, and social media.
The guys whose quotes you like are I'm guessing people who run a little more on the art or semi-arty side of things- people who might be well respected but are by no means rich. Hell, Martin Parr is one of England's most well known photographers and he works out of a room in the upstairs of his house.