I feel that most people instinctively assume that some institution, e.g. the government or the dictionary publishers are the authority on what constitutes "correct language". It's important to emphasize that language (included spelling) is something that develops organically and that the role of these institutions is just to capture the status quo. At least that should be the case in free societies. Language is power…
True they adapt the standard over time following common usage, but the standard is the primary source of truth and many things are decided unilaterally regardless of common usage.