I remember being outraged by that, not only by the evilness, but also about how easy it is to disprove.
As I said back then:
Empathy is one of society's greatest strengths, when people fall down, others will help them up, enabling them to keep contributing to society later, this creates a flexible but strong society.
A society without empathy is a brittle society, it doesn't bend, when someone falls down, they are left behind, and the society loses their their experience and future contributions, creating cracks. Eventually these cracks will break an unempathic society.
You can even claim that empathy is a form of selfishness, by helping other's you make sure that there are other's around that can help you.
TL;DR: Elon lacks basic logic.