Fdwld 101 "pius" means devotion to the divine, but in latin it also means a person who is mindful of his duty to the gods, family, and country.

That statement is true.
The term pius is often used to describe people who are always devoted in fulfilling his/her duty, either it's in normal household or religious institutions.
Because of this definition, many religious workers often adopted this name as a form of commitment toward their cause.