Ben Evans explains how new technology doesn't destroy jobs:

New technology generally makes it cheaper and easier to do something, but that might mean you do the same with fewer people, or you might do much more with the same people. It also tends to mean that you change what you do. To begin with, we make the new tool fit the old way of working, but over time, we change how we work to fit the tool. When CC Baxter’s company bought a mainframe, they began by automating the way they already did things, but over time, new ways to run the business became possible.