Having looked it up on the internet, I am sure I saw the film. It had Jenny Agutter in it

I remember the reveal was that the government had calculated it was marginally better for the economy to employ people to do nothing useful than to let them be unemployed.
There is also Reyholm Industries in the IT Crowd. No one is sure quite what they do, but they seem to do quite a lot. Actually it strikes me they're a company a bit like Foster Wheeler, who do all sorts of massive engineering and construction projects, so maybe that's not a good example.
My motive is that I've never been a boss. I've always been an employee. I'd go to my office in my suit and tie and tell the reception/secretary to hold my calls for an hour. I think I'd only employ her part time. In the afternoons I'd say I had clients to meet and then do something else. I'm not sure what yet.