Having a school education is important but it only gives you a start in life. A big part of what determines if you are successful is you as a person, your personality, how commanding you are & how you come across in corporate situations.
It’s important to have a certain level of education but an A in something like English isn’t going to get you a job over people who interview better than you.
The essence of education is not to have good grades. There are people who pay for such. Education brings enlightenment and information. And educated people are known for making informed decision, and this is based upon their understanding of laws.