You're absolutely right. Under a capitalist system, natural selection will select for traits like greed, violence, sociopathy, and an inability to sympathize, and we will get more people like this. The fact that people are downvoting comments about social equity proves it. An incident like this would virtually never happen in a country like Norway. Look how China's lack of good samaritan laws shaped their country, and see how America's hypercapitalistic government has resulted in countless mass shootings, dramatic raises in theft, and abolition of human rights. See how in just 50 years, South Korea has become a global player in the economy while North Korea is in shambles.