If robots end up becoming sentient and are not biological they won’t have evolved like we have being vulnerable to bacteria, diseases and poisons/toxins and because of it our sense of smell detects bad odors, we wash our hands, take showers and have a strong aversion to things that disgust us.
Robots may just happily pick up shit, dive in dumpsters and roll around in sewage. And why wash your hands or take a shower when water could hurt you? Who even knows if they would perceive smell the same way we do.
You just mean they would have different standards. Dogs will happily eat shit and we happily chew mint which supposedly will keep entire species away from an area. If they were sentient robots would obviously be attracted and deterred by different things than we would.