It is extremely true that wealth does not mean well-being. But it is also true that wealth is needed to bring us well-being. I remember I gave a status on Facebook a few years ago that money is not everything in our life but we cannot imagine anything without money in the present time. Although at present economic objectives are against human welfare but we should think of economies for the purpose of human welfare. But it seems that we are moving away from this day by day.
Yes and no. A tribe a thousand years ago could have wellbeing without wealth. It is just that today, we have decided that in order to have wellbeing, we have to be able to buy something.