No, we have central banks because fiat allows for the elitist pricks to extract ever more value from ever more people.

I'm not going to try to summarize what is explained very well in a few chapters of that book. But, there have been times in recorded history where sound money prospered everyone who used said sound money. Sure, not everyone benefits equally, but, it's better than the system we currently have where everyone except those who control the central banks and the large militaries.