(b) Those who are known by sight or name, but who have not as yet shown what they are, have a right to a negatively good reputation, for a man should not be considered evil until his conduct has given ground for unfavorable judgment (see 1727 sqq.). It is not defamation to say about an unknown family that has moved into a locality that we do not know what kind of people they are, but it is defamation to say that they are likely undesirable.
(c) Those who are known in a place and who have already acquired a good name there have a right to a positively good reputation; for, if the reputation is true, it is a good which they have honestly acquired; if it is false, it is a good of which they are in possession, and possession itself is entitled to respect.
2036. Sinfulness of Detraction.—The civil law does not generally punish slander if the slanderer can prove that his statements are true, but this does not make veracious defamation morally lawful. God detests and punishes crimes (e.g., fornication) of which human law sometimes takes no account. The harmfulness of veracious defamation is both public and private.
(a) Defamation Does Public Harm.—The peace and order of the community would be seriously disturbed, if it were lawful to attack reputations simply because one was persuaded that they were unfounded: the person detracted would be hampered in his official business and social relations, innocent persons would be blackened as well as the guilty, and the friends and relatives would suffer with the person detracted.
(b) Defamation Does Private Harm.—The peace and security of the individual would be uselessly assailed. Reputation is profitable both in spiritual and temporal ways, and it is therefore a ruthless act to rob a person of it, when he has done nothing in public to forfeit it and its possession by him is harmful to no one.
2037. Right to True and False Reputation. There is, nevertheless, a difference between the right to a true and the right to a false reputation.
(a) Thus, the right to a true reputation is an absolute and universal right, one which does not cease in any case, for truth and justice demand that one should not represent as evil a person who is really good. This right applies to an extraordinary, as well as to an ordinary reputation.
(b) The right to a false reputation is a relative and limited right, one which ceases when the common good on which it rests no longer supports it (e.g., when it cannot be maintained without injustice). Moreover, there is no right to an extraordinary reputation, if it is based on false premises, for the common good does not require such a right, and hence it is not detraction to show that the renown of an individual for superior skill or success is built up on advertising alone or merely on uninformed rumor.
2038. Sinfulness of Gossip or Criticism about Real and Known Defects.—(a) It is not unjust, _per se_, since it does not take away fame, that being non-existent. (b) It is sinful, if there is no sufficient reason for it, but not mortally sinful _per se_, since grave harm is not done to the reputation of one whose reputation is already bad. The sin committed is usually that of idle talk or of uncharitableness, by reason of the disedification offered the listeners, or the malice that prompts the speaker, or the sadness that is caused to the person gossiped about. Gossip is dangerous, since it prepares the way for detraction, as detraction prepares the way for calumny.
2039. Moral Species of Defamation.—(a) Moralists agree that wrongful defamation is a sin against justice and charity. It violates justice, since it infringes a right which is not less strict than that of proprietorship over goods of fortune; it violates charity, since it is opposed to friendship and love of neighbor. They also agree that other species of sin can be added to defamation (e.g., infidelity, as when one denies that Christ was sinless, or blasphemy, as when one defames a Saint).