I understand that it's not the chief's function to build huts, but if I drag him to an unfinished hut, he directs work. I feel that this keeps the villagers more on task than if he weren't there helping them. However, once the huts are complete he no longer directs work on construction. I have to drag my villagers to fix the hut over and over and over again before they it sticks. Maybe the directing work is a perceived advantage on my part but I could swear that they work more efficiently when he helps them.