Yes, my books are for sale which makes me a business man. I use my profits to buy things and pay bills so I have a vested interest in making a profit. If I did not, I agree my books would all be free.
I am just saying the authors who sell enough to make a living at it (my personal definition of success) that I have talked to have been more then happy to help. That is my experience, which differs from yours. In any field there are a range of personalities. Your opinions are jaded by those you have met, and my are jaded by the ones I have met.