"We" (the 8 billion) have made some insanely great abstractions or puzzle pieces to work with. There is just an insane amount of work that goes into even elementary things to get the world to where it works this way.
Parent's comment is observing a prerequisite to markets, humans are the only animal with global markets and biological selection happened to produce the kind of creature that can stabilise around markets.
It's also selection that produced the current form of markets themselves. The world could have been otherwise; our current markets are contingent selection products, not analytically necessary institutions, and not guaranteed to be the uniquely best mechanisms for producing abstractions and tools.