The factories in a post-industrial society don't just shut down. The machines may stop running and their buildings abandoned, but the exploitation never stops. If the primary sector of the economy is defined by agriculture, that which lies at the foundation of civilization, then the secondary sector being the production of manufactured goods has shifted to the quaternary sector of (dis)information.
Enter the software "engineer", the very word implies an industriousness and machine precision that couldn't be further from the art of writing software. The industry demands more software "engineers", but they fail to understand that crappy software keeps their authors employed. The service economy will self-cannibalize at some point. There can't be services for service providers for services forever.