They are probably closer when evaporated as a % based on the amount of value and profit in the supply chain that is being extracted. People making iPhones are working for companies that have their margins squeezed to razor thin margins so that Apple can make its 30% cut.
The other thing is the amount of skill required. There are more people who can be hired to assemble iPhones than to design all the parts that go into the product.
Finally, there’s an arbitrage effect going on. A company can more easily go into a low CoL and pay the predominate local wage than a person from a low CoL can move to a high CoL and get paid a fair wage (aside from legal barriers there are also social ones involved with leaving your family)
The other thing is the amount of skill required. There are more people who can be hired to assemble iPhones than to design all the parts that go into the product.
Finally, there’s an arbitrage effect going on. A company can more easily go into a low CoL and pay the predominate local wage than a person from a low CoL can move to a high CoL and get paid a fair wage (aside from legal barriers there are also social ones involved with leaving your family)