In Alexander McCall Smith's No. 1 Ladies Detective Agency, set in Botswana, the main character is a hefty lady and it's stated many times that if you own cattle, you are considered rich, even if it's only a few. The heroine was left some cattle as an inheritance and meals always consist of beef with some sort of yam like vegetables on the side. Same goes for places like India, when I was there, the villagers were usually good looking lovely lithe ladies, while the upper classes were chubby and rotund.
I've read all those books. And the 'traditional figure' was on its way out as attractive. The same in Uganda when we were there. In the capital city of Kampala thin was found more attractive. Larger women and traditional dress were still the most desirable in rural areas and villages.