When I began my career, I always thought everyone in the IT-sector loved their Jobs (except a few people who didn't fit in of course) - 10 years later I've met a lot of people who hated their jobs but didn't just quit it (no kids, no wife, no responsibilities at all) - what do you guys think about this?

Personally, I'm looking for a job where I can put my heart into and which has got a meaning for me (haven't found it yet and I don't expect to do in a short time) because everything else makes no sense to me.