Counter perspective: I used to work in robotics and really the majority of the jobs are in defense or defense related. There are a handful (less now that willow garage is closing down) of robotics companies that do civilian work. Sometimes it is not just about the money.
I don't work in the field I have a degree in. You have to judge these things against your own morals and ethics and decide whether working in your field is actually even a good thing.
