I think many parents of asked by their children what the point of school was would use the argument 'you need good grades to go to university and get a good job'.
In a way I can sympathise as it is hard for children to see the immediate benefits of quadratic equations or the driving force behind Lady Macbeth without having some understanding that expertise across the board at GCSE leads to better life chances.
It just brings me to think how many children are focusing on their studies because an innate love of the subject and how many focus on learning with future job opportunities in mind? I am reminded of students when I was at school learning physics at A level as an absolute chore but with the understanding that this A level was a good science to take for their desired profession, medicine.
Do teachers feel the bright students are driven by intellectual curiosity or by a desire to simply use their intelligence to optimise formal qualification grades for future employment openings?