Maybe they can buy a military to protect their wealth from thinkers like you who want to steal it. If you want to start saving the world make your own money and use it the way you feel it should be use. By the way, the money will eventually dry up because the phone market cannot go for ever.
Forgive my socialist tendencies. :D I don't want to steal only Apple's wealth, but a fair redistribution of all wealth. To me it is the duty of those with, to help those without. I do my bit, with the little I have but Apple are in a position to bring about so much change for the better.