Rene Ritchie nails it:
The thing is, it's never been about saving the planet. The planet will be fine without humans. Maybe better even. It's about saving ourselves. Both these initiatives, environment and health, work on that from both the global and individual angles.
They're very real examples of Apple applying the company's skill, influence, and money to help save people. Customers, sure. But people. It's optimistic in the most important sense of the word, and I very much hope it's contagious as well.