As I was reading point 1 of Sam's article, Compound yourself, I was thinking, ah ok, teachers are in the wrong field evidently, for Success. They can never be exponentially increasing their force and effect in the way suggested.

Although there are people like Gilbert Strang, making his excellent courses (e.g. Linear Algebra) available online, which over a million people around the world have watched and benefited from, and helping to create a world with an amazing variety of free online course videos available in all subjects. That is success for a teacher, I suppose. And we're asked to believe (in this culture) that making a lot of money is or could be in any worthy sense a greater success..