Darwin's theory in the popularized approach is perpetually misinterpreted. Survival of the fittest by his meaning and revolutionary definition is not as is commonly and mistakenly believed survival of the strongest fastest and most vicious. It is the survival of those who pass on their genes to the greatest number of progeny. Unlike insects, reptiles or amphibians, we do not pass on our genes to thousands of offspring.
Survival of the fittest in the human context ought to apply to communities as a whole. We have however, twisted our humanity into producing cruel and greedy psychopaths, who revel in the pain and suffering of those around them, even those who they are genetically related to. They do not destroy with sharp tools, but with greed and indifference, exploiting those of us who cannot and will not change their nature; those of us to whom integrity, compassion and empathy offers more value than the causation of poverty, pain and suffering.