Thomas Stanley has not only found no correlation between success in school and an ability to accumulate wealth, he's actually found a negative correlation. 'It seems that school-related evaluations are poor predictors of economic success,' Stanley concluded. What did predict success was a willingness to take risks. Yet the success-failure standards of most schools penalized risk takers. Most educational systems reward those who play it safe. As a result, those who do well in school find it hard to take risks later on.
In terms of column writing, with the exception of one or two others, I am probably paid as well as you can be as a journalist. I attribute some of this success to my ability to haggle. The main thing in this game is to ask for money and when they tell you the amount you say, "no, I want more".