I have no idea what an intelligent entity with a brain/processing hardware of the size of a skyscraper would be valued at. It might be able to stop any and all attackers just by talking to them after reverse-engineering their thought patterns, or by creating a virus that kills them, or by manipulating some of them to fight the rest, or by altering society to depend on it, or any of millions of other methods.
If you have ever taken an AI course you must know that developing an intelligent agent (robot) able to "live" in the competitive environment is much more complicated task than developing the AI for "friendly" conditions. Respectivly, the robots replacing most workers in manufacturing and services will appear decades earlier than military robots able to suppress riots the of unemployed.