Let me know when you find your solution. I'm starting to lose my zest for research for the same reasons you describe. This may change if I get a ttjob and get to run my own research instead of trying to please Dr. Postdoc Advisor, but who knows.
I suspect the/my problem is more systemic. After all, Dr. Postdoc Advisor is just trying to fulfill or please his grant or tenure review requirements. What bothers me on a more fundamental level could very well be the incremental way research is carried out. This of course makes publications very important since the number of them is an easy way of quantifying progress.
I mean, initially we are sold on the idea of inventing great theories (consider your average PBS science show). I suspect this is why most of us go into grad school rather than the 80hr work weeks and the truck driver income albeit with nice benefits - at least that was the case for me. So we spend grad school learning about the great theories.
And then it turns out that the job is not so much about taking risks and spending 5 years working on a theory that may or may not turn out to be good. That is way too risky for the grant organizations. Rather we take existing theories, add a little more detail and investigate case A, B, C, D, ... like everybody else.
It seems like the level of sophistication is measured out exactly to allow four annual publications. Go into more detail, and you're not publishing enough. Go into less and your research does not pass review. But I doubt that very many people get four original/groundbreaking ideas annually, I certainly don't. Most papers thus fall on the "our-work-is-very-interesting" level which is typically not that interesting to anyone but those who wrote it.
So the problem is that reality does not measure up to the idealistic image. Several posters have suggested changing reality. Become the candle in the dark. I'm fear that I could find myself unemployed over the course of a few years if I did not follow the party line. My question is thus .. how to change my idealism to match reality?
Some suggestions ..
1) Culture carrier - You're the carrier of the culture of your field - all the things that are unwritten. (If all professors suddenly died, it is highly doubtful that written publications would be worth much - one does not just pick up a book and start cranking).
2) If not you, maybe somebody else - While you may not be the great hope of your field, maybe you will inspire someone else. Wings of butterfly style.