Then, shouldn't the sentence have been constructed in this way?:
Nothing in life is as exhilarating as to be shot at without result.
When I saw the so + adj. + as to structure, I immediately thought of it in the same sense as in the following sentences (all sentences are randomly picked up from Google)
"Why are people so stupid as to believe that cow farts cause ozone depletion?"
"BP is not so stupid as to risk this kind of mess on purpose."
"Hardly anyone is so ignorant as to allow his worst animals to breed."
"And is the UK government so arrogant as to think that it can actually have any real impact on global warming by introducing green taxes, ..."
My point is: If the point is making a comparison, shouldn't the as..as structure have been used instead of so..as?