I don't think you have to sacrifice anything, unless your vision of how a job should play differs from how it is set up to function in a raid scenario. So if you do care more about pDPS than rDPS, but also really love a job like NIN; then it might be an issue for you. But if you are ok with choosing a job based on your preference of playstyle, then things are much more flexible for you.

I don't play a lot of DPS jobs, but what I find unique about a job like NIN is it potentially increases everyone's DPS by increasing its own. Ultimately, I think it is best to do as much damage as possible with the job you enjoy to play, not play the job that brings the most damage. Unless these two line up of course.