With this mode of thinking being so widespread, the authority of school is established with it's monopoly on accreditation, which inherently creates a hierarchal caste-system and a discrimination policy ranking individuals based on their degrees or any other educational achievements. Those who have gone the courageous informal route of autodidacts are not taken seriously and often denied professional positions due to their lack of certifications.

That is very true. My grandfather on the maternal side, he was not studied, he had only completed primary school, due to the few economic resources his family had, so from a very early age he had to find work, and since his adolescence he worked in an airline as mechanical assistant, and with the passage of time they gave him a higher position, however, although he worked there for 40 years, there was always a young novice who had no practical knowledge, but who did have a university degree, to which they ascended to higher positions immediately. That would be understandable if my grandfather were an unresponsive or incompetent worker, but that was not the case, in many cases, they delegated all responsibility to him, but they never promoted him. As my grandfather, it happens in many other companies, including, also happens when talking about any topic, many times people take as valid what is said by someone with an academic title, even if that is false, however, if someone without formal education says something truly valid, often not appreciated, simply because it does not possess the "license" granted by these institutions of formal education.