A person in an isolated tribe in Africa and a person in a city in the Western World can achieve the same level of happiness, so it would not matter where to live one might think.

BUT the person in Africa has the advantage of genetic superiority, because he was never exposed to artificial things. He has normally no crooked teeth, no disabled body parts, good eyes, etc, which many western people don't have. He will also have way less psychological problems, because he was never exposed to artificial systems like working for someone above you, etc...

So the Western person can never achieve the highest level of happiness, but the African can.
Unless we find a solution for every possible of those above stated problems (AI working for us for example) we might decide to return to monke (or everyone kills themselves).