One of the problems is that it will create an environment where individuals are strongly encouraged and pressured into pursuing a particular type of career or avoid XYZ other activities. Reminds me of the stereotypical asian parent forcing their children to become lawyers or doctors, when the individual would much rather pursue sports, arts or something else entirely. One of the most critical aspects of success is motivation and desire to accomplish X. When everyone around you is saying you should do Y because of your genetic makeup it could lead to a lot more dissatisfied human beings.