Because of globalization , the communication toward each nation can make easier. The world is linked together so the business must be better if the government run it globally
So if you are bilingual, trilingual or may be more than that, the entrepreneur will consider you better than the applicants who can speak only their native language because you have much ability.
And if you can use languages proficiently, you can use it as your job
Translator
translate articles or interview and give the information for people who don't know its meaning
Language teacher
teach people how to use new languages
Writer and journalist
write your stories and contribute it to media pieces across the world
Diplomat
help your government to communicate with foreign governments and make international relationship
But the careers involving languages seem to have lower demand because of technology development.
People have been finding many way to decrease the gap between languages for a long time. That makes we have many technologies which help us about language. So if everyone can understand other languages the career involving languages won't be important anymore.