Fair enough, you're right that there would surely be patterns. But there's no advance reason to think these would line up with popular stereotypes. PCA & factor

Fair enough, you're right that there would surely be patterns. But there's no advance reason to think these would line up with popular stereotypes. PCA & factor analysis often come up with highly unintuitive components! And unless the fit was spectacular, there'd be many 'great artists' falling outside of its net, so we'd just be falling back to judging the work, not the person's life.