Wow, you certainly say a lot here. Back in "the day" when printed encyclopaedia's were a primary source of reference, knowledge simply wasn't growing at the exponential rate it is today. An encyclopaedia set could be up-to-date for 10, or even 20 years in cases. Today, of course, nation's borders change annually, and there is absolutely no way for a printed medium to keep up.
I don't necessarily agree that teachers themselves are trying to keep "the system" in place, though I will agree wholeheartedly that the public education system does that on its own through it's bureaucracy and insistence on never-ending-testing to prove metrics. I don't envy teachers put in the position of wanting to teach their students to think critically but needing to teach them how to pass a test. I definitely understand the idea that "being on the internet doesn't make it true," but crowd-sourced information typically ends up being quite correct.
It is absolutely amazing that all of us with our phones have the entirety of human knowledge at our fingertips, brought about solely by people who firmly believe that sharing information is the key to continuing to improve the human situation.