The story that the OP is referring to is not the story (if any) portrayed by the art, but the story of the work itself. So it is bound up in the story of the artist, the history of a particular work, and the path from the artist's conception to the the most current owner. You might call that provenance, but it's a wider net than just that.

A story of people who view art as a trophy, or as an ultimate symbol of wealth?

Story-->Provenance