The example given was property owners complying with covering broken windows, wasn’t it? Does that seem like a useful gesture of compliance? I believe the idea is more that it sets an example of compliance with authority, but I agree that the whole concepts seems a bit questionable to me.
How were mask mandates useless? The data is in and they did help prevent spread of infection.
Do you have any serious and confirmed study of such a thing? So far it doesn't seem that there is any consensus whether masks are useful or just completely useless.