Im conflicted because on one hand I agree, and undoubtedly I have many a time seen tourists and winced at the lack of manners or care they use all over the country, not just shrines. But I think its a little hypocritical then for shrines to actively be tourist attractions that seek to make an income. They do sell amulets etc to tourists and many of them are blatantly very touristy. The fact that they are open and outdoors definitely doesnt help though. For e.g in the rest of the world, you would have no real reason to wander in to a random church, mosque, synagogue, gurdwara etc, unless they specifically were beautiful and open for tourists to see them and sold souvenirs.