I don't know much about The Internet Archive, but...

The world doesn't 'owe' us a record of everything that was ever written/recorded, let alone the ability to access it immediatley and for zero cost.

If you are the author of something that you want preserved for decades, then you have to make the effort to host / torrent it. 

 Sure, but IA gets used all the time for the plebs to fact check the masters. It's a valuable tool.