I don't quite see you point. Yes, language has intrinsic rules. But language is also dynamic. Those rules can be changed. Forcing change for the sake of change is sometimes needed and welcome. Otherwise, there would be no "laptop", "laser" would still be an acronym and everyone would write "gaol" instead of "jail". There's a reason the proposed shortening from "though" to "tho" still hasn't dropped out of usage yet.

Language adapts to fulfill the needs of the users. After all, it is the best communication tool we have. Prescriptivism doesn't help improve the "complete mess" of a language, it just forces it to become outdated. We need neologisms, grammar changes, spelling reforms and so on.