conscientious

adjective2

1. •
   Thorough, careful, or vigilant in one’s task performance; painstaking.

   • He was a thoughtful and conscientious worker.
2. •
   Influenced by conscience; principled; governed by a strict regard to the dictates of conscience, or by the known or supposed rules of right and wrong (said of a person).

   • The advice of wise and conscientious people.