The actions you were proposing weren't things to help people make better decisions (if they were, it would still be free will). They were to make laws to outlaw activities. If you don't believe in free will, why do you propose helping people make better decisions? Do you really think imposing someone else's will over others is more benign? The government imposes its will through force or threat thereof (causing human suffering).
Government and politics is not really artificial. They form naturally whenever there are groups of people - similar leadership and power dynamics exist in the natural world too (look at bees, ants, wolves, etc).