How might the lower classes having access to knowledge that previously was reserved for the nobility affect society?

Knowledge is an effective medium for lower classes to improve their social status.

Explanation:

Any society having a complex division of labor will address its members into various categories within some sort of hierarchy of power. While in early societies access to knowledge was confined to the members of the upper class such as nobility and clergy. However, access to knowledge by the lower classes has changed that paradigm and became a ladder to climb upward in the social hierarchy.