The fact that you came away from Parasite feeling that the Park family was murdered for nothing is indicative of being absolutely blind.
He asked a father to step away from his dying child to help rush his own, feinted child to a hospital. The nuance being that the rich will ask the poor to die in the name of petty conveniences. Feel free to take that one on the house. I'll need $15.00 for each additional film insight course after this free trial.