They're already programmed to know and learn more continually. That's why the power that they have is also the knowledge that comes from us. And they're not going to destroy us if they will be used properly and for the good sake of the humanity. But, we can't just look at that because bad people will also at that possibiltiy on how they can do their crimes easily by being away to the scene and with the use of these AIs and robots. That's scary and not all about the ais replacing people's job but on how it can be harmful to us physically and how it can take away our lives.