Summary of all answers to question 9 10. Money is not a large issue, neither is fame. Science is about understanding everything you can about your chosen field. Science is a different way of thinking about problems. It is a method that is very structured and methodical.
Art is creativity, manifested in different media.
Summary of all answers to question 1 2. Scientists are not necessarily drawn to a specific subject matter. It is more so that they find that methodical way of thinking appealing. Artists are intune with their brain, probably the more developed part. I am sure talent must be involved somewhere.