Purpose?
I believe Apple Inc. helps out organizations such as the Global Fund, Teach For America and the Red Cross because like many other major businesses, they want to give back to the needed and be socially responsible. For example, Product (Red) works with Apple to manufacture Product (Red) branded products. By doing so all proceeds from Product (Red) iPod Nano’s sold go directly to the Global Fund to help fight AIDS in Africa. I myself own 2 Product (Red) iPod Nano’s and am glad to have donated to support an ongoing problem.