> Even if he's really thinking "let's save 10 million children from dying of malaria so some of them will buy Windows phones"

It's more like "let's donate 10% of the money needed to save 10 million children so others can donate the 90% needed to finish developing my vaccine and test it on the kids".

Or something like it.

> What matters are outcomes, not motives.

We have to be careful about that. The most obvious are not necessarily the only outcomes, nor the most relevant and lasting.