Before photography, people didn't make such a distinction between an artist's impression of someone and a realist artist's impression. Because people knew, even though a really great Dutch painter could paint in a really realist fashion, it is still painting. It is not photography. So they never confused that with nonfiction. The realist painting and Impressionist painting are both paintings in the same category. But after photography, somehow, we moved photography into a different category, which is nonfiction.