Imagine how different the prejudices and outlook of someone 50 years ago look to us today. And consider that the modern Western worldview is about 500 years old. These things were built 4500 years ago. Cleopatra is closer in time to today, than to the construction of the Pyramids. They were built 2000 years before Plato. Maybe 10 or 20 generations before the Epic of Gilgamesh.