Ancient monuments weren't built by free entrepreneurs either last time I checked, quite the opposite even.
Well, monuments generally are not very useful. They're created to glorify someone or something, generally a priest or a king. Civilizations tend to be judged by their monuments, because they last a long time, not because they were useful at all in any way.
True, by themselves they were mostly useless in practice ( though used as observatories in some places ), however their science didn't have much other breeding ground than on such monumental projects devoted to kings/religious purposes, so generally ill purposes. For example the very first piramids were pretty laughable when compared to the last stages of this art, they could only learn that by doing. Babilonian astronomy wouldn't be what it was without the religious lunacy centered on the role of stars and planets.
And even the more useful things like irigatory systems were made and kept going the statist way, because that's just how things worked back then, however wrong that may look today to anti - statists. And pyramids weren't even that blood thirsty to build, don't believe absolutely everything the Bible tells you

Compare Egyptians to Nubians south of them as a more statist ancient culture to a less statist one - whose achievements do we learn of today in schools ?
Edited by chris w, 14 October 2010 - 05:35 PM.