There are so many conflating forces in action at once here. The One True Sentient AI appearance will probably be followed by The End of Practical Scarcity (food, clothing, material goods) which will require a cultural upheaval.
People extend current society metaphors to post-TOTSAI and immediately assume you'll have Google CEOs getting trillions of dollars from TOTSAI while everybody else lives in hovels. That's not a tenable world outcome.
(There are clever book-length writings to be done on these topics.)
Current technology is already growing towards establishing a fast-twich ambient psychic network amongst ourselves anyway. It'll be used both for greatness and the utterly most trivial drivel imaginable (a real time conference of a million one direction fans? imagine twitter, but worse.)