I believe you have missed the point. You should think about reading the article again. The fact that "she failed to be recognized because she doesn't sell hers

I believe you have missed the point. You should think about reading the article again. The fact that "she failed to be recognized because she doesn't sell herself" does not translate into "she should sell herself", because the very act of doing so can undermine what makes her be so good at what she does. And in fact, a lot of people don't care about selling themselves well, so why put so much effort and time into something a) they don't like b) they don't need?