Just move on and ignore it then..........I don't get why you feel the need to denigrate it.
Because you shouldn’t be lauded as a hero for doing the least of what should be expected from any normal, decent person. Its not like she was putting her life on the line or putting more of an effort into something than your average person would.
Unless you are disabled or sick, if you have to walk 9 miles in a bit of snow and get a few blisters to save someone’s life, you do it. If you don’t, you are a complete waste of space. She demonstrated that she is not a waste of space, nothing more, nothing less. It really is what anyone should do...