Dear Bill Gates. Here's yardstick to measure residual value of your efforts: If you'd stop doing whatever you're doing, will the world continue benefit from your past efforts for ages to come?

Compare "buying food for the hungry" and "teaching the man to fish" - which effort carry more residual value?

You developed DOS, and then Windows. Even when you stopped - the world continued rolling with your software and building more and more great stuff on top of it. Even Ballmer with all his powers couldn't derail your past efforts.

Dear Bill Gates, please stop taking consequences for causes, stop fighting with shadows. See where you can turn on the light so it will shine when you'll be long gone. Money + creativity goes the long way. It's time to add creativity. You can do that! You can do that!