This is an old debate in linguistics stemming from the Sapir-Whorf hypothesis. It's been shown time and again that languages adjust and evolve based on what is needed from them by the people who use it. If the words do not exist, they will be created--the concepts will be invented as a matter of necessity.
A good quote that exemplifies this is from Roman Jakobson: “Languages differ essentially in what they must convey and not in what they may convey.”
