Rather than get into an endless discussion on the merits of Western Civilization compared to your Arab, parts of China and India, preference, I will accept that you would want to explain their superiority over Western Civ, many Cannabis defenders believe the same, in fact it is kind a trait the majority of the Cannabis crowd share, and that has been promoted since the 60s.
I don’t share that view, nor are they equal.
But understand that people rise, people change and people fall. It's hard to believe but western man could someday be as twisted as the Islamists. And Arabs could someday have a more free and advanced society than ever existed.
My point is it's mostly circumstances and will of the elite that defines a society, not what intoxicant 5-10% people use on their free time. I'm asking you to prove that wrong, not whether western civilization is better right now (which I DO AGREE WITH).