I suppose I am looking toward my job to provide that level of fulfillment, when it could conceivably come from elsewhere.
Hit the nail right on the head.
My boss is a boy scout troop leader, he regularly goes out to the gatherings, and I can relate his mood to how their last meetup went. His job has 0 impact on it.
Keep looking, something will fill that void soon.
I, myself, found that making bread for community kitchens sorta did it, not the act of making it but seeing people eat it, and taste it, was very fulfilling. You don't have to do it for charity, there may be other things that tickle your fancy.