I have worked a little bit with "artists". Too many of them are caught up in their vision, and apparently incapable of dealing with reality. Too many of them believe that their vision is so, so unique that everyone else should sort out any problems.
There's one guy where I live, whom I tried to help out several times. I would invest lots of effort handling the practical stuff: flyers, text, web site, etc. Little thanks, because it was his due. Then he would have a new idea, change direction, and it was all for nothing.
Part of Gage Art Academy's mission is to create working artists. Students learn about (and struggle with) how to get paid. Stuff like how to price their works, balancing one's own artistic expression with making stuff that sells, how to pull off an exhibit, etc.
There's one guy where I live, whom I tried to help out several times. I would invest lots of effort handling the practical stuff: flyers, text, web site, etc. Little thanks, because it was his due. Then he would have a new idea, change direction, and it was all for nothing.