If there were any way to quantify this -- "quality-of-life improvement credits" -- Apple would likely be quite rich in these as well as simply in financial currencies.
Its hard to imagine now but there will be Apple without their fearless leader one day. They are a profit seeking venture like any other--brilliant marketing has people convinced otherwise.
My question is: what has Apple done to directly propel the world (particularly the 3+ billion people in the "third world" - impoverished and middle class) towards globalization? Microsoft (perhaps in their bid for control) has donated & sold (or subsidized) millions of products to this group of people. In some countries, apple hasn't even attempted to sell their products at reasonable prices despite the opportunity. Isn't ushering all parts of the world into the next decade as important as creating the next great iOS?
If the workers were not happy with their workplace and conditions, they are free to leave, or even better, organize a labor union.
Also, be advised the GE could also pay their chinese laborers a bit more, if you would be willing to pay more for your microwave, you water heater, your light bulbs, your cookware, etc. It's not going to happen. Let China enjoy being the manufacturing capital of the world while we still have fossil fuels, k?