“Is it a smart idea to replace humans with something that has no free will or true independent decision making power?” And that question is assuming that humans have any free will or true independent decision making power, and from a biological standpoint we were originally dealt the genetics that majorly influence what we are predisposed to doing based on what our bodies can do as seen in separated twin studies, and every unconscious response i.e, fight or flight, hormones, and other chemical stimulus is just reacting to our environment, calculating the most efficient course of action, then running it, so are we reduced to a cosmic level of atoms moving around in a seemingly random pattern until they are measured giving us “free will”? Actually no, because that is quantum entanglement, “spooky action at a distance” as Einstein refereed it to (Nova); it's a pair of gloves and put each of them in separate briefcases unknown to you on different sides of the world, before you open the case they are in a state of limbo between right glove and left glove, and it is the direct action of opening the cases (any form of atomic measurement) that turns it into an boolean of either right glove or red glove; it’s grey until it is black or white, 0 or 1 provoked by the environment forcing the measurement.
Bartlett, Jamie. "No, Eugene Didn't Pass the Turing Test – but He Will Soon – Telegraph Blogs." Technology No Eugene Didnt Pass the Turing Test but He Will Soon Comments. The Telegraph.co.uk, June-July 2014. Web. 19 Nov. 2015.
Cherry, Kendra. "What Is General Intelligence? Review Your Psychology Terms." About.com Health. About.com, 16 Dec. 2014. Web. 19 Nov. 2015.
Quantum Leap: The Fabric of the Cosmos. Dir. Julia Cort. By Brian Greene. PBS, Nova, 2011. DVD.