There are many qualities of a great leader. Passion is one, empathy is another, listening is another, decisiveness is another. I think a great leader makes people feel comfortable, so that they feel that they're allowed to be stupid, they're not afraid to give their opinions.
It's not new that architecture can profoundly affect a place, sometimes transform it. Architecture and any art can transform a person, even save someone. It can for children - for anyone. It still does for me.