قَالَ الْمُنْكِرُ: الْعَدْلُ لَا يَنْفَعُ. الْعَدْلُ أَسَاسُ الْأَمْنِ.
The objector said, “Justice is useless.” Justice is the foundation of security.
The first proposition is reported as the objector's view; the second can express the narrator's rebuttal. If coordination would invite the reader to place both within the reported speech, separation avoids an unintended attribution. Sharing a topic is not sufficient grounds for joining the clauses.
The analysis of misleading coordination asks precisely whose statement or judgment the conjunction might seem to extend, and whether that extension distorts the intended meaning.