>support npc roles
This might sound trite, but are your parents "replaceable"? Even in a strict mechanistic sense, even a "baseline" parent possesses innumerable qualities that we have absolutely no clue how to build in a robot. They have a well-tuned cost function that keeps them or anything else from killing the baby; they come to learn the child well enough to understand what they're thinking, to correct them & guide them; they themselves are reliable enough to broadly survive until the child reaches adulthood (can you imagine swapping out your robot parents every iPhone generation?). Even their fine motor skills alone are far beyond what we today understand how to build (to cradle, feed, wash, &c).
And that's not the only thing, just a convenient example of how the worldview you present -- one where the only value someone can provide is that which can be extracted by the owning class via their "job" -- is not only unkind but also incoherent. I don't even know what you mean by "deserve" or "earned": yes, none of us did anything to gain the attributes that we were born with, but so what? We are who we are, and who we are is defined in scope by who we were born to be. We are all given options and choose between them day by day. But nobody -- no thing -- chooses which options they are given.