Historically merchants were the ones with ‘dusty feet’. Came and went and were treated rudely everywhere. Agrarian societies didn’t care for capitalists. Tables are now turned. They rule the world. Too many wars get started on their behalf.
Again, I corrected your characterization of the Muslim slavers.
They weren’t your agrarian anti capitalists. They were at the trailing end of generations of slave raiders, thieves, murderers and merchants in human flesh.