Your agent is asked a complex regulatory question. It draws on general training data and gives a plausible-sounding answer. It might be right. It might be outdated. It might not reflect how your organization actually handles this. You cannot tell. There is no citation. There is no traceability.
Your agent queries the knowledge graph first. It surfaces relevant past decisions, your documented methodology, the experts who handled similar situations, applicable updates, and a confidence score on each piece of knowledge. The answer is grounded in your organization's actual experience. Cited. Traceable. Defensible.