I don't think anybody really incorporates entire cultures into a fantasy setting. They take a lot of the surface trappings and place them in a fantasy setting taking or leaving what they need. And while people like us might be interested in wheat farming in a D&D setting, I seriously doubt most people playing D&D care that much.Just to offer a counter opinion here, the problem with incorporating entire cultures into a fantasy setting is that most of the time, when you do this, it makes zero sense. The boards here are rife with examples, recently one talking about how wheat farming would be problematic in a D&D setting. On and on.