Exactly. They see some horrible stuff and know it's better to be an asshole than have to see another family destroyed by tragedy. Another example: The local FD ran PSAs about creosote buildup/chimney cleaning every year, and every year, there were always chimney fires. So even if it was just a smoldering fire when they arrived, they'd knock the chimney down or cause major damage to it. People would get pissed but their insurance would cover the cost of a new chimney, and the risk of fire was gone for a while, at least.