useless

The guard, a man, hovers behind her as she watches the video feed, spouting useless information about body language that, surely, an educated and trained psychologist already knows.

While he couches language like "vampire" and "fraud" in false claims that he's talking about illegal payments, the accumulated impact of his rhetoric is to demonize elderly people as a useless burden on society.

In fact, it became more obvious than ever that his talents, such as they are, are completely useless in a crisis.

"I have served my country and now I'm useless. That job has doomed me," he said.

That reflects, in large part, the Enlightenment heritage of Western democracy — but it turns out that facts are largely useless in this context.