That's the dream. Except in the minds of those who aim to bring it about you are in some unmarked plot.
replyYeah roving bands of murdering robots would be a problem in that scenario. We should be able to keep/maintain our current security and rule of law though.
replyThe issue (for the masters, and besides any ethical issues) is being a slave master is a very tenuous position, and prone to revolts.
replyToo capable (but also valuable!) slaves tend to be self sufficient and strong enough to throw you off.
Too weak (and therefore non-valuable!) slaves tend to be easy to control - but are a huge drain on the system, including ‘master’ management, which is often the most constrained resource anyway in any hierarchical system.