Do medicines serve the family in any way?  Anti-seizure meds?

Does google map serve the family?  Maybe help them plan a vacation? Find granny's home?

Does the kayak travel service help families, perhaps help them save money?

All done with math.   Math serves the family. 

Does a mother who studied math well perhaps have some intellectual skill and virtues that are put to some use in the family, perhaps teaching her children how to set up problems, break down pieces of what appears to be a tough problem (not just math problems)?  Might not her improved virtues in precision, exactitude benefit her as a mother or wife or worker?

Of course...math serves the family. 

The problem here are the people with little ability to see connections across many realms.  They also can't see "virtues" underneath activities of any sort. 

Catholics need to get much smarter about what the virtues are. 

Math most definitely serves the family, and I could give 50 examples without slowing down.