A family’s scholarly, religious, or social contributions may deserve respect, but each member is accountable for their own conduct.
Example 1: Someone boasts of noble ancestors while refusing to return entrusted property; ancestry cannot excuse that violation.
Example 2: A person from an ordinary background consistently shows honesty, service, and devotion; it would be wrong to belittle them because of their family name.
عَمَلُهُ is the grammatical subject of the verb: it is the person’s own deeds that held them back. The structure emphasizes personal accountability.