When the audience is doubtful or may misunderstand, an unelaborated statement may be inadequate. Itnab can establish a meaning firmly, clarify the intended sense, and add emphasis.
Amplification may also remove a possible misconception. A qualifying phrase may seem longer than necessary until one notices that it protects the intended meaning.
Compare “He is brave” with “He is brave, but he does not oppress others.” The second clause is useful when the speaker wishes to rule out the mistaken equation of bravery with cruelty.