Fallibility
Human beings have a tendency to make mistakes. No matter how hard one would try it will never go away. It can be minimized to some extent but it will never go away. All the technology in the world cannot cure the human fallibility.
An artificial intelligent device or robot tends not to make a mistake in its work. It would provide you the wrong results if human being have made a mistake in creating the algorithms it’s going to work on. It has no tendency to make mistakes on its own.