The article "Lobbyists played role in Katrina rescues" is about much more than that. It discusses the priorities of the National Guard and other rescuers; even when they were sent out to evacuate a hospital or nursing home, they would do a rooftop rescue instead, considering that a higher priority. The article is too long to include here, but this is how it starts:
Two lobbying groups, chosen by Louisiana to collect emergency requests from hospitals and nursing homes during Hurricane Katrina, found themselves instead scrambling to arrange private rescues when government teams became preoccupied with plucking citizens off rooftops. The inability to quickly direct National Guard and other government rescue teams to health care facilities had deadly consequences...
Please put the most revealing bits in the comments.