Not at this point in time. There aren't many S-Classes in the world, and pretty much all of them are more or less required to help clear dungeons if they can. The exception is the Saint, but she's a special case.

Of course, if we can get dungeons under control, then there will be more room for S-Classes to do other things if they'd like. I'd like Officer Song to quit being a government employee and become a teacher instead. Just as an example.