Banks outrank hospitals?
See the chart here which shows the expected power reliability for various markets, as 99.n% where n is some number of nines (more nines = more reliable). I figured hospitals would be at the top level, but no, that would be the internet ;-) (Okay, online markets, which I assume means financial trading, which I guess somehow upholds the entire world order.) Anyhow, even banks are more important than hospitals, which is even more interesting. I guess hospitals have better backup power systems so they can be lower on the list?