Sure. And nobody has proven that Jesus or Vishnu won't come back and destroy the world for its sins, either. Positing a future apocalypse that will envelope the world unless everyone adopts your pet religion has a long pedigree.
Now I think you're going too far. The point above says that you can use capitalism to benefit the world around you. Instead of spending $3 million on a car, you can spend $3 million on businesses in a 3rd world country. In the end everyone wins instead of you alone.
