The 1972 Chouinard Catalog that changed a business – and climbing – forever
37signals.com
37signals.com
This meant that a lot of very popular routes became a lot more dangerous to climb cleanly. To their credit, the climbing community just accepted that and moved on.
It wasn't until the late 70s that cams (SLCDs) were invented and clean protection devices attained sufficient breadth to protect very nearly any climb that could have been protected with pitons.
http://farm3.static.flickr.com/2555/3916660721_88390fb2f0_z....
Each one of those wider flaring sections are places where people pounded or repounded in pitons.
Here's an Amazon link -- no kickback, I just want more people to read it.
http://www.amazon.com/Let-People-Surfing-Education-Businessm...
You could tell a similar horror story about what would have happened if anyone had bought Google in say 2001 or 2002. The ethic of "clean search results" would probably never have become the industry standard.
That being said, he did have a huge impact, and it's probably for the better that he retained personal control of the company for as long as he did.