In general, the higher one's level of education, the better one's chances of getting and keeping a good job. For example, according to the New York Times' website this past week, women with a college degree have only about half the rate of unemployment (right now during this recession) that women with only a high school diploma have (I believe the numbers were 4.2% compared to 8.8)
In most careers, communication skills are vital. In order to get to a position of responsibility, you need to be able to communicate (again, depending on your career) with bosses, subordinates, customers, co-workers and others.
I don't know why I can't put a link in the proper place here... anyway, here's a link