In science, they say there was a Mitochondrial "Eve," a woman from whom all living humans today descent.
In web semantics, we know that Tim Berners-Lee was the leader of HTML (from around 1989 to 1993, and onward) , and that Marc Andreessen who co-wrote Mosaic and co-founded Netscape (from about 1993 to 1998, and onward), was one of the largest technical and marketing geniuses that made HTML become one of the strongest languages in the world.
Before I knew who Marc Andreessen was, I translated and "rewrote" his graduate-student-level guide, "NCSA's A Beginner's Guide to HTML" into "HTML: An Interactive Tutorial for Beginners," (1996 - 1997) a web site targeted at teaching teens and tweens who can then get a web page up within a few hours. I was fourteen-years-old when I made the translation, so it was made to teach my peers.
I didn't realize I was the grandson in coding lineage of Semantical "Adam" ( Berners-Lee ) and I never knew my coding father, Andreessen, but their guidance did lead to my tutorial teaching more than a million people to code HTML in English alone. The site was pirated tens of thousands of times, many into other languages, so I have no idea what the actual student count was. At the time I had created my HTML tutorial, I had no clue I was the web semantics/coding grandson of "Adam."
A second project I worked on, the online banner advertising movement, was also the major precursor to "free apps" that you can download for your mobile phone. When I taught HTML, I also mentioned if you make a great free site, you can paste some ads at the top, and make some money. A decade later, this became a common way for mobile developers to earn their livings.
My biggest regret, in the whole scheme of things, was not to stay in business, and become a millionaire, as I probably could have been, or gone for my Ph.D. and made some sort of world-saving or life-saving app, but instead this: I should have had my entire tutorial proofread.
The world definitely benefited from my two projects. The benefit of the typos, I'll have to ponder that for quite a while. One thing it did do, was encourage people to write better proofread tutorials, while not as easy as mine, they definitely had their own audiences, for example, college students, which needed a much more professional teaching style.
I do believe the blatant typos did also do one additional thing: It let kids who may have been taught perfection is all that is acceptable, and nothing less is acceptable, to find a place where mistakes are okay, and your project, or one the projects from someone who learned from your project, definitely can change the world. You don't have to be perfect or even close to it to inspire world change. Just have a friend who can give input on your projects and missions.