Natural selection is not nature's aim, it is the consequence of its physics. It does not beget the kind of purity even if you value strength/ dominance/ supremacy for a particular species over the universe. Because natural selection still, with the primal condition, will leave many destitute.
Natural selection does not kill ALL unfit to live from within its own special genome. It has a huge grey area which makes average specimens/ non winners. It's why many incels/ chadlites/ normies exist.
Every creature is designed to fend for itself.
There is no one absolute mode of justice. Evidenced by the fact that nature does as it pleases.
It is the greater share based on the scale of space/ time/ sampling field we have in our scrutiny.
We have to be conscient of our method of sentience. Our method of sentience, with the speed of how stimulus travels to our brain (300 mph), and it creates a range of awareness. Our range of awareness is subjective.
We may have a stunted perception. But our mechanical scanners/ sensors of stimulus show that we are at least parallel with what we are perceiving. Our senses pick up frequencies of radiation, and we have machines that pick up even more frequencies. Based on the emitted signals we can perceive.
All other emitted signals that signalize reality are out there. But from our sphere of sensing signalizations, I think we can be almost entirely sure that we are seeing reality as is.