The customers as a whole don't have more money, because half of them just got automated out of their jobs. Maybe enough new jobs come around that it isn't a long term problem this time, but there will come a time when essentially every job could be done by a computer. What then?
If that point in time comes, and the computers still "obey" humans, yet still have enough control so that there are no wars between different computer groups, then nobody will have a job and we'll just ask robots to make us stuff and they'll mine other planets and make stuff for us, and we'll live in outerspace in spaceships and relax a lot.
