Answer:
This allows the lower classes to be less exploited, which allows society to be more just and egalitarian.
Step-by-step explanation:
As you may already know, the lower classes of society have less access to quality education, social and political education, among other factors, which are often intended only for members of the more noble classes.
This limitation that the lower classes have, allows the members of these classes to be more exploited and to undergo more injustices, often without knowing it. When these classes gain access to knowledge previously reserved to the nobility, they are able to better fight for their interests by making society more just and egalitarian.