This is because no two situations are ever truly the same.

Absolutely. Not two situations are exactly the same. As the world is changing, many things are changing with it. What was obtainable 10 years ago may not be the case now. There was a time when jobs were waiting for graduates that finished with good grades. Parents pressed it on their wards to study hard, get good grades and grab the jobs. However, the rule have changed. In like manner, an advice that is helpful today may not be helpful in the next ten years. Change!!!