There is fundamental concept in economics called comparative advantage, which implies that everyone can provide value to society making both themselves and everyone else better off in the process. So theory would imply that it is not a big problem. Leaving theory and moving to the real world, Note that in the past agricultural jobs were the focal point of the economy and people were very worried about new plant technologies and large scale production. They worried - 'What are people going to do when we don't need farmers?' For the past 30 years or so the economy has been losing manufacturing jobs to low cost countries and automation. All during that process and even today people have asked, what people are going to do when all the 'good' manufacturing jobs are gone? In both cases the jobs are gone and never coming back and it also hasn't been a problem. So just like the ordinary people that didn't become farmers and the ordinary people who didn't become assembly line workers are, today, contributing to society; theory and practice suggest that ordinary people that don't become technologists will also, in the future, be contributing to society.