No. This is basic economics - when you make a product, you don't charge the consumer what it costs + x%, you charge what the market will bear. The primary control on the price of an item is the amount that the consumer is willing to pay for it.
Amazing how the anonymous simpletons neglect to deal with actual business economics but instead want to focus on some simplistic price model (that doesnt even include the basics
The idea that Apple would not in any way change its business practices if its profit margins change is laughably ludicrous. Only someone looking to justify their position with horseshit would ever believe otherwise. Picking theories first and then searched for shallow justifications is not rational. Stop doing it.