>>3 I think, it is not what he does at work but at leisure that tells the degree of his education.
The low educated people, when deprived of their means of earning, often commit crimes, say, robbery, blackmail and so on. Besides, even if they have much money to live, they seldom make anything valuable at their leisure.
On the other hand, the man of culture often produces a lot of creative works at his leisure. It was in the refuge from the plague that Newton found the law of gravitation. Not a few great poems in ancient China were made by the learned people who failed to get the job of the bureaucrat.