You are confusing what I said. A driven person could be driven to do any number of things and none in particular. They could have a desire to achieve education, wealth, fitness, athletic, musical, etc., goals.
A driven person might have a desire to become an expert in their field and no desire to go through formal education (maybe they see no value in it).
My point is, the achiever or driven person in one area is more likely to achieve in other areas. A person who is willing to put in the effort to get a formal education (or educate themselves, does not really matter) is more likely to be willing to put in the effort to achieve other goals, e.g., health or wealth. The person that has no drive, has no drive. That person won't be likely to have an education or good health because they are not willing to put in the effort that either of these things require.
So, the idea that education leads to good health maybe a joint cause fallacy. Both are caused by some other factor, in this case, drive or ambition.