This is what everybody gets wrong: Agents aren't bad or evil. Nor crazy. They don't steal. They pretty much work (after some setup and periods of supervision) as expected. And yes, sometimes they might be wrong and spend more. Same as the human. From a business standpoint it is just risk/reward structure.
True and calculations are changing inside large corps that run BPOs. You just don't see the news on HN, cause HN hardly surfaces what is happening inside Enterprise Software stacks.