Mali’s legacy seems to be a rather tragic one. Despite holding onto a nice big part of Africa for thousands of years and destroying the Ashanti early on, they are most vividly remembered for:
1) Hosting a nuclear holocaust as the Buccaneers wiped out most of their population;
2) The Boers rolling over in their sleep and wiping them out in one part.
They were not a poor civ, but they didn’t last long once the poor civs were sent to the glue factory.