We're chained genetically to our primal instincts of survival and territorial behavior, highly intelligent AI will most likely not be. Why would it want to exist? If you were void of emotion and instinct, and with high probability could calculate the universe would end in a Big Rip, why continue? Sorry to be a downer but genuine question.
Is an AI not subject to natural selection as we are? If emotion and territoriality are net negatives but local maxima, couldn't an AI fall into them as well?
As a machine it was only capable of pure, cold logic with no emotion, but with its new-found sentience V'ger began to question its own existence. It asked the philosophical questions faced by so many lifeforms: "Is this all that I am? Is there nothing more?