You don't have to class yourself as an artist, or be up your own arse to have a bit of integrity.
If your not happy with what your doing, you've got every right to fuck it off.
it's not about being pretentious. Personally, i'll only do work that i want to do. If i think the client wants me to be a programmer/ software operator and have pretty much fuck all to do with the design, i'll fuck it off.
Each to his own.