Really.
There's been a nice bit for a few countries right at the last minute. But comparing ancient Greeks to medieval europe, to the Aztecs, to the world wars, to the industrial revolution, to hunter-gatherer societies, to the golden age of Islam... I don't see a clear line at all.
And as for "ever more", the only way of life or culture that has never died out is tribal hunter-gatherers. There is no "ever more" or eternity for humans. Cultures come and go, sometimes the historians can't even say why. To think of humanity as on a never-ending quest of moral refinement sounds not just naive, but positively new age.