When high automation comes, it's not going to be only the rich that own robots. As an analogy, take smartphones - there are 5 billions of them in use in 2017. Almost everyone can have the best phone today, or one that was as good as the best from a couple of years ago.
There are going to be cheap and useful robots for everyone, 3d-printed, open sourced designs running on open source AI, and capable of assembling more robots. What goes into a robot? Motors, gears, sensors, batteries and computer chips? Those are all commodity everywhere on earth. The moment we can assemble them into working useful robots, we will see an explosion of do-it-yourself automation everywhere.
With self printing and self assembly we can make a software based factory that can "compile" itself and anything we desire. We will have built the first "material compiler" that can "bootstrap itself" by creating a replica. Then everything will cost only as much as raw materials.