> novelists and artisan software craftsmen could produce for the love of it

People probably won't build some dashboard for a large boring corporation but they absolutely will do it for something they love. This isn't even theoretical. See how much software and programming research exists completely outside of the market. And for writing, take a look at fan fiction or stuff on writing subreddits.

Certainly some people do it for money, but there still is a significant number of people who do it for the love of it.