Standardisation works with weights and measures because the definition of those isn't meant to change ever... A kg should always be a kg, a km should always be a km, etc.
But while globalisation may have slowed them down, languages are still evolving - why do you think there are still words being added to the dictionaries each year?
You think the dictionaries just think up new words for themselves, or do you think that they're catching up on words that have entered the majorative lexicon?
Language is one of the few things that is still controlled by majority usage, because you can't really standardise normal, everyday use of language. So if you dig your heels into the ground trying to standardise existing language, you'll be the one left behind by the majority of language users - even the dictionaries know that.