Ever heard of Doctor Sanduk Ruit? You probably haven't, despite the fact that this guy treats (and cures!) about 2,500 people A WEEK for cataract blindness.
Oh, and if you're poor, he won't charge you a penny for it. Because he can.
Doctor Ruit developed a method of eye-surgery entirely without stitches in 1986, where he removes the cataract lenses in people's eyes, and replaces them with intraocular lenses he developed himself. These, unlike such lenses manufactured in developed countries which cost about 100$, only cost about 3,5$ dollars. The surgery itself takes about five minutes. The whole operation really only costs about 20$. As someone who would probably go insane if I ever suffered blindness, I can really appreciate this.
And thus this man just goes gallivanting with his traveling hospital into the mountains of Nepal, where many people suffer from blindness due to dangerous UV rays in that altitude... and lets them see again. That's just beautiful.
He co-founded the Tilganga Eye-Center in 1994, which is a non-profit, non-government organization which runs on donations. They have worked in Nepal, North Korea (seriously!), Afghanistan, Bhutan, China/Tibet, India and Pakistan.
Bask in the awesome, people!
So next time you feel despair at humanity because some twat doesn't know "your" from "you're" in the youtube comment sections, think of Dr. Ruit. Because if humans can still be that fantastic, I think we can ease up the worrying.
Links for the Himalayan Cataract Project and the Tilganga Institute.