Agreed - govt spending often entails economic damage but in certain cases can have a worthwhile societal benefit. But we can't agree to this and then deny that an unimpeded economy may cause a societal detriment. Where people differ is what societal detriments are worthwhile for an unimpeded economy and vice versa. Sure, a perfect market economy will thrive when you have a small but strong investor class and large consumer class. But is this the type of society that we want? And what happens when people get old? Do only those who can afford it get healthcare? Maybe, maybe not. That's more of a philosophical question.