Society exists now entirely in the context of greatness, prosperity and liberty. The bondage of the past is in the mists of time. Those who came before and spiritually evolved to the point where society could become great, prosperous and liberal are dead and cannot act as teachers to those who now know those times only as "the past."
So very true.
Why did the Roman Empire fall apart? One important reason is that the people who built and forged the institution had long been dead by the end. Men like Scipio couldn't reach out and teach the later offspring about life and how to wage war.
Take a simple example at the micro level: At my high school, I once saw a kid sitting with his African parents. The kid wasn't doing well in his courses. The parents spoke perfect English, were sharply dressed and exuded class. This made an ugly contrast with the boy: shirt half-out, slumped in the chair on to his right side, mumbling on how he'll really do better this time.
His parents just couldn't understand. They had sacrificed so much for him. They both worked full-time. They understood how hard life is. They had provided him with so many comforts and opportunities. They had enrolled him in a school in the West. But what was the result? He regularly skipped classes, cheated on assignments and was failing two out of four courses.
Why! How! It didn't make sense. This kid was living a life of luxury better than what 99.99% of humanity could dream of. Why was he pissing over every chance he was given?
Upon learning history, the question answers itself.