I have a cat that isn't into sitting on laps, but also doesn't realize he has claws. My MIL snuggles him when she visits no matter how much he wiggles and squirms - he's never scratched any of us in the 7 years we've had him so far. Don't worry, she only holds him for 5-10 seconds and then lets him scurry away.
Luigi did society a massive net positive by removing a parasite. It wasn't so much a killing as taking out the garbage. Nothing of value was lost that day.
Thank you for this delicious piece of information.