Actually, Umair, Arab world invests heavily in its infrastructure. We tend to focus on extremism and think they’re still camel drivers. Sure, fossil fuels has given them obscene amounts of money which royals throw on garbage stuff. Having said that, dubai has state of the art metro which costs next to nothing. Medical care. Allowances given for every baby born. Education is free. Nationals are very well provided for. So yes, Infrastructure and public goods are up there.
Slave labor is a different story. India, Pakistan, Sri Lanka Bangladesh etc. appalling conditions. Burj Khalifa which kisses the clouds, of Mission Impossible fame is a testament to the fortitude teeming thousands who labor to send a few Dirhams home. Terrible conditions. They are untermensch.
My main grouse with Arab world is that it could’ve single-handedly settled Palestinians who rot in camps totally oppressed by Zionists. That’s unconscionable.