If everyone were that responsible we wouldn't have had a mortgage collapse.
It takes money to make money. Business generally requires capital, thus we have lenders. If you have no camera but you could get a $300 loan @ 6% for a $300 Mamiya you saw online and had a shoot this week paying $400, what do you do? The question comes down to the skill of the photographer, which would establish his risk in this scenario. I would say he is a good risk.
Apple was recently given AA+ credit rating because they will be taking out a massive loan to make dividend payments. Credit is part of business.
Anyway, I was just daydreaming. Not so serious!