To gain power of an entire country like China, Mao had to be very intelligent. Him not being informed of the consequences of his policies is highly unlikely. The consequence of claiming that he was ignorant is that it enables you to absolve him of some of his guilt. You are downplaying how bad he really was. This is not fair. Mao ruled China for 33 years and has caused more destruction in his own country than most rulers (if not all) in recorded history.