Yes, but we civilized humans, with the helps of centuries, went against nature, and decided we are no beasts. We instituted Justice, the Law, moral frameworks, and many other things that are human-made patches to Nature.
Do you think it is in vain?
If you had a disabled kid at arm's length today, would you propose we avoid supressing the law of nature for too long, and let natural selection do its work? (Which results in the quick death or starvation of the disabled and the weaks, FYI).
