These countries only have superficial signs of development, bought from outside with oil money.
The countries that have really developed indigenous technical, scientific expertise as well as developed their industries and agriculture to a level ranking in the top 10-20 in the world are few in the Muslim World. I have skimmed a lot of statistics and let me tell you, despite its poverty, Egypt is way ahead of SA in terms of real indigenous capabilities. If you carefully follow these trends you will also see that Iran and Turkey overall have the highest levels of true development. In the case of Iran, much more could have been achieved, but with the war and revolution, Iran was set back at least by 15 years.
It is like saying the guy who won the lottery and bought BMW and mansion ... is smarter than everyone else !