In time humanity may integrate itself with technology to become more advanced - such as greater ability and intelligence. With this intelligence explosion it is reasonable to expect a radical re-shifting of society. While he likely did not think of contemporary technology, it was Voltaire who philosophized that humanity is simply in a transitional phase to something greater.
No, humans are not a testing ground for a "truly advanced society". To imply such is a bit asinine, as humans are presently believed to be the most advanced society in the universe. We have acheived so many wonderful things as a people, and there is no evidence that a higher society is using us for a testing ground.