Yeah, they were contributing factors. Roman expansion alone was responsible for the extinction of Etruscan, Ligurian, Umbrian, Messapic, Oscan, Venetic, Rhaetic, Iberian, Celtiberian, Gaulish, Illyrian, Thracian, Dacian and Punic, among numerous other 'lesser' languages and dialects.
Yet Rome is glorified by Europe. Rome never made tar roads as a gift to humanity. Their reasoning was based only on acquiring more lands under their rule faster and more expediently. The Roman doctrines seeped into European Christianity, which continued Rome's heresy doctrine throughout medevial Europe.
The break from medevial European doctrines occured with the emergence of America and its Constitution - this was a huge rebuff of medevial Europe, but this is not usually acknowledged as such. The Constitution directly confronted medevial Europe, which was substantially Roman based in its doctrines, which also became emersed in the Gospels. The opening passage of the Constitution unfolds this fact: WE HOLD THESE TRUTHS ALL MEN [HUMANS] ARE BORN EQUAL - was the first open negation of racism embedded in both Europe, and sadly, in the Gospels, which gives superior status based on religion, rendering others no salvation solely on this doctrine.
The Constitution is also responsible in making English the primal, official world language, even though this was formed in England; prior to the Constitution French dominated the world language usage. The Constitution also brought together the various dialecs of Europe, whereby the people dropped their native mother tongues for one new language. Not least, the Constitution may also be the document which saved Christianity - from Europe! Is not the US Constitution the greatest man made document humanity possesses - by impact?