Robots that set out to do something against human nature requires an artificial intelligence that transcends human nature. And since humans create artificial intelligence, I can't see that happening any time soon (like in the next 5-10 millennia).
Up to now, robots were created to do menial tasks that otherwise consume man hours, so by nature robots are designed to push up man's smartness, by virtue of the fact that more technically minded people will be needed to take care of the robots. This, of course, presumes that people will not succumb to laziness and become beach bums.
TD
Robots that set out to do something against human nature requires an artificial intelligence that transcends human nature. And since humans create artificial intelligence, I can't see that happening any time soon (like in the next 5-10 millennia).