[qplex]

>the ethical and monetary cost of a rodent suffering or dying due to unwanted effects of a drug candidate is judged to be lower than similar suffering in a human.

Thank you for the insightful comment, I'll cite the part that is relevant, since my (very serious) point was indeed that by this logic a more "advanced" being than us would have (by our own morals) the right to conduct medical experiments on us humans, because we are capable of feeling less pain.