Comment by tedsanders

I have met a number of Nobel Prize winners in physics, and while it's dangerous to generalize, as a whole they seemed to me to actually be more interested in broader issues of physics and society. I can't say whether this changed after the prize thrust them into the limelight, but from my experience with Physics winners, your single-function hypothesis does not hold true. In fact, the Nobel laureate on my PhD reading committee is involved with a number of start ups and technologies and books all far afield of his Nobel research.