He has a duty to his shareholders. The reason that the Chinese workers are willing to work in such terrible conditions is that it is a step up from where they were. China is modernizing, just as we did once.
Say for a second that Jobs was somehow able to double the wages given to the average worker in China (or increase conditions such that it was effectively a doubled salary). The result would be massive, widespread demand to work in those factories. Since supply and demand are not balanced either queues take over or gate keepers get paid off.
If that doesn't make you feel better at least the corporate taxes Apple pays might.
Say for a second that Jobs was somehow able to double the wages given to the average worker in China (or increase conditions such that it was effectively a doubled salary). The result would be massive, widespread demand to work in those factories. Since supply and demand are not balanced either queues take over or gate keepers get paid off.
If that doesn't make you feel better at least the corporate taxes Apple pays might.