We have plenty of other organisational terms to denote a higher rank. What's wrong with those? They might even be more accurate. I don't suppose DBAs get in a ship to pillage and loot foreign lands for their database redundancy.
I see too many people arguing semantics or historical bias, or whataboutisms but barely anybody giving positive arguments to preserve the master-slave terms in tech. If "all races have had slavers" is the best you've got, perhaps it's time for change.