If we had no free will we would have no need for Governments, armies, laws, etc.. The people in power positions would simply change reality so that we did their bidding without any manipulations.
No, they wouldn't because they wouldn't have free will either. If we have no free will then the world that we see is exactly the world that would exist because this is what we have in that deterministic universe. You can never say "If we had no free will then <something would be different>". If the world is deterministic then this is the world that is determined.