I guess society does play a role in derailment of a person from their passion or what they really could have mastered in unless they were forced to take decisions because of pressure which can be both external or internal. Need of money, or say, greed of money when one wants to pursue a course he might not like but has more jobs, or break in educations due to financial situations in family and other problems. I agree that all of us are unique and have different abilities but situations are never predictable which kind of forces or lures us to take decisions which ideally we might not have taken.