But I think it is human brain which caused all this destruction. PEOPLE fought and had lost their lives before the improvement of science also. so, it is definetly a boon for the society The greatest harm science has done is to the faith of man. God has become a nonentity. In the modern jungle of mental activities where would a desperate man go? Having lost faith, his intellectual activities lead him to suicide. A number of scientists meet this fate every year in India. By This we can conclude that Science has more Boons than Banes.