2 points
I don’t see any attempt at the movie’s part showing that the products they were making weren’t somehow used by the citizens of Elysium. The droids are everywhere, implying that they fulfill a need based on what remaining manufacturing can be done on world.
It’s not meant to portray a society that has a fully automated economy, it’s about one that relies on the other for creating goods that will be used and priced out of the range of the laborers who created it.