Is there a biblical basis for God calling one to place one's career above their other duties?

I've tried to phrase this question several ways now, and none of them are really to my liking. I will just ask it clumsily and provide more details as they are asked of me. Does God ever call people to lives devoted to their careers? For example, suppose someone says to himself "God has called me to forego starting a family in favor of devoting my life to being the best dog groomer I can be." I choose a particularly strange career on purpose. The work of a doctor and the work of a dog groomer is equally meaningless if it is not blessed by God. I suppose my question, therefore, is whether there is precedent that God asks for and accepts such a life, or whether this hypothetical dog groomer is deluding himself.