So because I cannot communicate with someone who does not speak English I am automatically better than they are and thus I can do whatever I wish to them? Real nice logic there.
Religion is always a weak argument for any side, simply because stating "it is this way because God made it this way" isn't an argument, it can only be taken as either a statement of fact or as a pointless statement.
Making machines may not be a logical choice itself, you know. Ever watched the Terminator? Well, the scary thing is that really could happen, one rouge computer program that is given enough intelligence would be capable of hacking into every defense system on the planet, and then we go boom. In other words, there is a logic to not using tech, a very simple one: You are far less likely to accidentally blow up the planet with a pile of rocks than with a nuke.
We aren't superior at all, that is simply a natural assumption that nearly everyone makes, either consciously or subconsciously, but the cause is the same: Its arrogance, the natural pride of assuming yourself to be better than something else. Its natural, and its also very stupid.