Just think of Apple's margins after removing all 3rd party suppliers from their lineups.
At that point the only thing standing between shareholders and higher returns are all those pesky, salaried employees.
That's what robots are for, at least on the manufacturing side. You still (so far) do need people for design work and at least some of the programming. But they'll be obsolete one day too. Darwin says find something a machine can't do if you want to survive. (and yes, machines could reproduce - other machines anyway, so that doesn't count)