Why are intelligent people discontent with their jobs-for example CAs

Being intellectual can often become a handicap. Many CAs perceive accounting/tax as beneath them, and yearn for banking jobs, just to realize they are a (overpaid) hamster on a giant wheel, at risk of getting obsolete(for example, investment banking back office)

1. Often, you apply just a fraction of what you have learnt unless you are in a research world
2. You often face ostracizm from your peers who are afraid to be surrounded by those "smarter" than you. Hence, social stress may come.
3. In real life, the standard tested measures of intelligence may not make you successful in real life where you need to use street smarts to achieve a result(eg increase market share of XYZ item by 1% in 6 months)
4. For Big 4 also, Sr Manager and above is a sales role, and in assessment procedures, you may know the law but the other party may know the assessment officer
5. Rules of success change in the real world and you need to be prepared. 

Credits: Large part of this post inspired by video of Anurag Singhal(https://www.youtube.com/watch?v=_1J-_binWYA)