Nah bro, believe me becoming a doctor is like trying to become a NASA astronaut, the competition to get into Med school is so fierce that some people end up taking their lives because the amount of work and hours needed to succeed in it so high. On top of that, the grades needed to get into the average med school is beyond crazy, you need to achieve like the best 2 percent of grades in your whole borough or county to even be considered as a candidate.
Even if I had the intelligence for becoming a Lawyer, I could never see myself defending a child molester or rapist in court even if they were just accused of their crimes and no concrete evidence had been given to prove that they were guilty of committing them. That's why they say in order to become a successful Lawyer you need to become some sort of sociopath, and sociopaths usually have higher IQs.
Sociopaths don't have better mental faculty than the norm; it's a myth.
You're mixing the level of intelligence needed to work in Burger King and the actual people that work in Burger King. Many environmental factors would explain it, but it is impossible to predict the IQ level of a random worker without personal, contextual background information.
People don't consider flipping burgers a good career choice. The average worker is 29 years old, and the fast-food industry has a turnover rate of 130-150%; this is approximately less than one year on average.
It is impossible to predict the life trajectory of both the people inside the 'Bell Curve' and the people that fall in the higher end (the exceptional ones), while you can effectively measure the potential of individuals below the average (people with serious mental disabilities).
Many problems with the measurement of intelligence, but that's a topic for another day.
Your habits, character, temperament, and ability to think independently that allows you to behave rationally is more important than IQ because intelligence alone is not what determines if you will become successful or not.
What people need is to be brought up in the proper environment where they can develop a sound intellectual framework for making decisions and the ability to keep emotions from corroding the framework.
A stronger predictor of success is the attitude of a person. Researchers in Standford discovered that people with a 'growth mindset' had a much stronger likelihood for reaching success than the people with a 'fixed mindset' (they believe they cannot overcome their innate nature, and therefore limit their potential, and close the doors of many future possibilities).
