That's not the job of a corporation. That's the job of individuals (which means YOU).
If you are an AAPL shareholder, you can put some of your dividends or capital gains into what you think are worthwhile causes.
If you have sufficient income or assets to be a regular Apple customer, you can put some of your own money (in addition to or instead of buying more tech goodies) into your favorite causes.
How much of your own money have you put into underdeveloped countries and schools, etc.?
Let your actions speak for yourself. Instead of complaining that some random corporation should do your work.