Many times the amateur compares their photos to a pro or rich pro. Although the pro may not be that talented, the pro may be on a different level, just in $ and help and connections.
Look at Mary Ellen Mark's crew for her Twins project...
http://photohostsnapshots.tumblr.com/image/125927444563
She was able to scout out the project years ahead of time and took 2 years to shoot it. She drove down there with 2 vans, a huge crew and loads of equipment. Just feeding everyone is a monster bill, let alone wages and other expenses.
A few years ago I was planning to shoot The Twins Festival where Mark shot. Luckily for me I checked with them ahead of time before driving a couple states over to shoot it. They told me I needed to pay a $1200 freelance credential fee to take photos there. I told them I was not using the pix commercially and just shooting for my own use. They said it didn’t matter…$1200 or you get thrown out. So, money / connections stopped that project in its tracks.
A lot of the great photos produced throughout history were due to the photog being able to travel for projects. If the photog does not have enough money to travel, then they had better work like Ralph Eugene Meatyard and produce iconic work in their own backyard. Of course, even if the photog has $ to travel they still need skills to produce great work.
When a photog has $, they can maintain a roomy studio with a couch, fridge and A/C to work in. They can hire a publicist, professional models, an art director, assistants, secretary, makeup artists, hair artists, fixers, location scouts and managers, grips, post process artists and a truck load of strobes, cams, reflectors, diffusers, tripods and the rest…it all takes lots of $$.
I read about a bird photog that spent thousands of $$ hiring a charter boat and tons of chum bait to attract birds. Others hire helicopters and planes for aerial shots. Look at what this photog and crew brought with him for his project…what a cargo bill!
http://photohostsnapshots.tumblr.com/image/123547096728
Sometimes $ can also buy cooperation. Eve Arnold paid $1000 to a fixer to get access for shooting the black Muslims in the 1960’s. That was a lot of dough back then – WSJ says it is $7,700 in today’s money.
http://www.wsj.com/articles/SB10001424052970204257504577150641295316770
As people get squeezed more and more and have a harder time getting by, it is not uncommon for subjects to ask for an honorarium to allow photography and interviewing. So given em a few bucks if it will buy cooperation.
I gave this guy $1 for a pix...I liked his sign! He would change signs throughout the day.
When it comes to developing projects and experimenting it takes $ as well. Money helps with professional connections. Money buys the best prints, PP'ing, project development and advertising…and isn’t it true that the high and mighty gravitate toward the rich / famous? Money also buys time. The poor photog that works 2 jobs just to get by does not have much time or energy left for shooting.