individualistic concepts

Some words are suitable to use only at the level of individuals. Their applications at societal level always involve an implicit personification of society.

Blame. You can blame somebody for an undesirable outcome. But blaming a class of people or a nation for an outcome does not work. In such cases we look for a leader with a there-must-be-somebody-behind-all-this attitude. You can not punish everyone, even if you know for sure that the undesired outcome was a spontaneous result of individual-level decision making. (i.e. There was no leader directing the crowd.)

Madness. As Nietzsche said madness is exception in individuals while it is a rule in crowds. Hence it does not make much sense to say the crowd is behaving madly. You do not expect rationality and consistency from crowds anyway.