in point of fact, our society is not a whole lot better developed or organized than ancient civilizations of 4000 years ago, the only difference is our technology is better and our populace and infrastructure is a lot cleaner. Ancient Rome wouldn't be all that different from a modern superpower if they had mastered electricity or figured out how to make concrete, and they missed out on those innovations only for lack of development time.
AND if the romans knew - and actually applied - such things as human rights (see the rights of slaves, peasants, etc) AND an equitable political system (see how patricians kept for themselves wealth, power and everything else worth keeping) AND science and technology (which is not even close to being reductible to only concrete - which they knew about - and electricity: these are details that fit into a MUCH larger scheme) AND were a LOT less aggressive (their entire economy was a raubwirtschaft, based on conquest of the subhuman - subroman, that is - peoples beyond the borders of the empire), etc.
You have an unaccurately high opinion of the Roman Empire.
No political entity in history matches modern liberal democracies (imperfect as they are) when it comes to wealth, liberty, equality of chances, human rights, etc (as in, quite a few other highly relevant/objective criteria).
Those human rights violations and wars implicating liberal democracies you hear reported about in outraged terms are all but jokes by comparison to what the romans (and pretty much everyone else) were doing throughout history (and someone daring to be outraged by them, if he had any influence was promptly executed/imprisoned in some hell hole/etc).