Billions already pledged to reconstruct Notre Dame.
I guess everyone wants to be known as "the person who rebuilt Notre Dame", while nobody wants to be known as "the person who gave Flint non-poisonous drinking water".
I think there was a moral dilemma during WW2 about whether to risk human lives to save art from the Nazis. The consensus seemed to be in favour of the risk. I guess they concluded art was, in a sense, more important than individual lives. I think I understand this in an abstract kind of way but I wouldn't like to be one of the individuals sacrificed for the sake of European culture, much as I value it.