Feeling like you are making a difference with your job and that it has value is important to many, so definitely not alone there.
In my previous job I often was genuinely excited to work on things because the product was amazing and it was like my baby. Or rather, everyone's baby, we all bend over backwards for it. it was cool, but it was also exhausting after some time, because you were always "on". Because we were so excited, we never allowed us any slack, really, and as the thing grew bigger, so also became the pressure. I still loved it, but the extreme pressure and unreasonable hours made me leave in the end. Some days I wish I hadn't, because I still care so much for the product and I don't think I will ever find that anywhere again, which makes me sad. I want to feel that buzz.