Some artists feel rewarded by the completion of their vision alone. Having said that, many artists also have made a living selling the results of their their creativity both online and off.
The myth about artists not being good salespeople is phooey. Artists are gifted with the same qualities needed for successful entrepreneurship. First, they have vision. Then they creatively take their vision to fruition.
Creativity is the most important tool of a successful entrepreneur. Join with other artists who are marketing their work, and learn from them. Have a good and creative day!