This perspective on the bible and Latin is not a good analogy. Most people could not read any language long ago, and priests in general serve several other purposes before reading/expounding upon the bible. From the standpoint of a believer, the bible was not expanded by human decision as laws are (canonical vs. apocryphal discussions aside). The bible was compiled in Latin by Jerome because it was the common ('vulgar') language of the people.

Of course, there's plenty to discuss and argue about in all of the above, but your comparison makes it seem like a done deal.