My theory is that some of tge people making it grew up on the old sci fi that trafficked more knowingly in the women as servants thing, but by the 90s/early 2000s that trope had become more about "this is how you know you're in a Serious, High-Tech Location", because there's a computer with a lady's voice running things. So you still have the female-sounding voice acting in a techno-caretaker/secretary role, but the appeal becomes less about the novelty of that and more about the sophistication it's meant to signify.
My theory is that some of tge people making it grew up on the old sci fi that trafficked more knowingly in the women as servants thing, but by the 90s/early 2000s that trope had become more about "this is how you know you're in a Serious, High-Tech Location", because there's a computer with a lady's voice running things. So you still have the female-sounding voice acting in a techno-caretaker/secretary role, but the appeal becomes less about the novelty of that and more about the sophistication it's meant to signify.