Oh, I don't doubt it. But Mercedes developed a rear wing specifically for Baku. How does Hamilton think they did that? He might see the simulator as an overrated video game, but the team is the one using the data that he gathers and using it to develop the car.
Maybe Hamilton should contest the 2017 season in a car designed purely in rFactor, and he's only allowed to play it for an hour a day. Meanwhile, Rosberg can have free reign over the Mercedes simulator. We'll see where they finish the season.