As the first response said, there is money to be made and they intend to take advantage.

Those razors have flooded the online marketplace because they're made cheaply and can be sold for next to nothing in order to turn a profit. The fact their Muslim population are told in the Koran to refrain from cutting their facial hair (aside from the upper lip, which is supposed to be trimmed and kept neat) doesn't affect their sales, I'm sure. Besides, what percentage of strict Muslim men do you suppose shave with a straight razor?