In the Republic of  Plato and i noticed that the just society of Plato is where everyone is minding their own business. In fact,  Plato, is searching  for the answer to what is Justice finds it in this astounding formulation:  to mind one's own business.

He means this in its common sense way but also in the larger scheme of a just society where everyone knows their own job and is doing it. The carpenter, the shoemaker, etc. are all doing their job, and no one else's. And not sticking their nose into other people's business.

And you can see this in the modern world where the emphasis in high school if to and what you are good at and enjoy doing and to do that. 

So you do not have the idea of  the mediaeval period where everyone is supposed to learn the Written Law, the Oral Law, Physics and Metaphysics whether you are good at it or not. 

So the idea brought in the Musar book אורחות צדיקים Ways of the Righteous, and in the writings of Rav Nahman  of Breslov of "Girsa"--saying the words and going on does not resonate with people. They figure if they do not understand what they are learning, then there is no point to it.

Especially in the Gra, we find that learning Torah is the highest ideal. It is not meant to be just for a select few. [In the Gra, himself you do not see this elaborated on, but in the Nefesh HaChaim of his disciple Rav Chaim of Voloshin this idea is brought down in volume 4. ]

Plus you see in the book of Rav Nachman that על  ידי אמצעות הדיבור יכולים לבוא לתבונות התורה לעומקה [Le.M vol I:13]  "By means of the word, one can come to the understandings of the Torah to its very depth."-- That is, just by saying the words, something gets absorbed and processed in one's deeper unconscious.