well, that is subjective, and I would say that Bede, Chaucer and Shakespeare played a bigger role in the transition from Anglo-Saxon to Old English, Old English to Middle English and Middle English to Early Modern English respectively (Modern English is a comparatively new language)
His translation while impressive as the work of one individual did have flaws due to this solo effort -- as we see in this link like
He was a genius in the orignal languages as well as English and was instrumental in development of English as a language, as was Luther for German and Calvin for French.A linguistic genius to know French, Greek, Hebrew, German, Italian, Latin, and Spanish as well as Middle English, yes he was if that is true. But instrumental in the development of English as a language -- I don't think so, he DID play a role, but definitely not as instrumental as Luther for German. Calvin as "instrumental in the development of French" is a joke right? French was already pretty well developed before Jean Cauvin came along.
Calvin's influence is not confined to the religious and moral sphere; it extends to the intellectual and literary development of France. He occupies a prominent position in the history of the French language, as Luther, to a still higher degree, figures in the history of the German language....The modern French language and literature date from Calvin and his contemporary, Francois Rabelais (1483-1553)
(Schaff, History of the Christian Church, Vol.8, p.265-66)