Your above argument is built upon a false narrative. As is obvious, illiterate people did make translations of the bible into the common language of the people. Highly educated people who could read and understand scripture in the original languages, were convicted they they needed to translate bible truth in to the common languages of the people, and educate them to be able to read the scriptures for themselves. One of the main reasons they did this, was because they noticed that what the state established church taught and practiced did not line up with what they read in holy scripture, therefore the need for reform and education among the masses.
We most definitely did see all kinds of advances in education, knowledge, development, science, industry, wealth, and opportunity for countless more people than the papal system and feudalism of Europe provided for any but the elites. Namely clergy and royalty. Who quite apparently kept the larger portion of those they subjugated illiterate and uneducated. Which problem the translating of holy scripture immediately began to address with widespread interest in reading them, encouraging more people to learn to read, and more people wanting to teach others to read for this very purpose.
The apostasies or rebellion you speak of above are not due to people having the holy scriptures to read for themselves, or their freedom to do so and choose how to believe for themselves, but rather their abandonment of what the scriptures actually teach. Even within the history of Israel and the church we see the cycle of apostasy, reformation or revival, and the slide back again repeated over and over. The conditions of apostasy become unbearable, abuse runs wild, reformation and revival occur at great sacrifice, people begin to prosper accordingly again, later generations then take this for granted and slide right back into apostasy to repeat the cycle over and over. This is the history recorded in holy scripture even among God's people, let alone the history of the rest of this world.
As far as the development of political forms of atheism and secular humanism go, they were birthed into the modern world via unbridled Roman Catholic rule in France. After Protestantism was successfully ousted from France the disparity between the rich and poor under direct Catholic rule, became so great that the people of France rose up in rebellion and rejected the authority of the Roman Catholic church and God as well altogether. Establishing the supposed god of reason in His place, giving rise to the political entity of secular humanism we must deal with today. Protestantism did not create this beast, unbridled Catholic rule did. Meanwhile Protestant nations became increasingly prosperous and filled with literate and educated peoples.
Apart from all of the above, the price of educated freedom is and always has been high. Allowing for people to decide issues for themselves, and even be wrong if they so choose. God has not called upon His people or any other to subjugate others with mandated religious teaching or practice. It is the personal job of every professed Christian to provide moral guidance, teaching, example and influence, to those around them. If our light goes out, the world is certain to follow. Nevertheless, it has not ever been, it is not now, and it never will be the place of authentic Christianity, to establish their beliefs and way of life by way of civil mandates upon all. This is the spirit of antichrist, not our Lord Jesus Christ, who never did and or called for such a thing. Nor did any of His apostles. This was the problem that highly educated reformers addressed concerning abusive power wielded by the Roman Catholic church, in calling for the freedom of all to be able to read the scriptures for themselves. Enabling adults to decide for themselves what they will believe regarding it, or even if they will believe it at all. Which is the God given right of every person. which is why an overwhelmingly Protestant population of peoples DECLARED -
This is exactly what Protestants and later what we consider Secular Humanists today did, in casting off the unbearable yoke of Roman Catholic intrusive and abusive rule. All of the above by the way, began to do so as Roman Catholics themselves, who were sick and tired of the Church and Royalty washing each others hands of the abuses they both committed against their own people. Not the least of which, was mandating their freedoms and liberties away. This is a no brainer for all and any who care to see the simple truth of the matter. So be it.