I, personally, think "techno-utopianists" don't go far enough. The contributions of some supposed non-technological progress - even to an extent of the institutional progress, but especially of some supposed cultural/ethical values improving, etc. - is overrated. Ultimately, it's all downstream of technology - only the technology enables the complex economy of abundance, and combined they allow good institutions to propagate. Even modern societies, as soon as they become poor, quickly start losing a veneer of "ethical progress". And we don't even usually see actual technological degradation.