Have you ever noticed how the people who get all A's aren't necessarily the most interesting or intelligent? They're just the ones who work hard. Grades have a lot to do with determining who's the best worker bee in the hive to perform their job happily without question.
Each year in the UK a higher and higher percentage of people get A's and A*'s across the board in every subject. It's always in the news once a year, ever since I left school. Yet we also have the highest teenage pregnancy, European obesity (someone check that for me) and ever mounting problems with anti-social behaviour, economic collapse and binge drinking.
Grades need to be re-thought, as while they might benefit a select few, the rest of us, who think in a less clinical way, or are unmotivated by a letter on a piece of paper or empty promises of fortune, get "left behind" like the great unwashed and practically spat on by those in charge like the Original Poster with his B scenario.
I'm one of those people who was always told "Must Try Harder". But why would I want to do that when I don't care about getting rich and doing a job I'd have hated on account of choosing subjects that were wrongly suited to my personality and mental style?
As a video I saw recently pointed out, the current public education system was built in the Industrial Revolution a hundred years ago, when the people of the country needed to know very mechanical in order to do their jobs in the factories. Whilst the already existing higher education system, which had previously existed for the Rich anyway, trained those already in power, to keep their power as law-makers, politicians and businessmen.
Hence the current education system, as an evolution of that base robotic factory nonsense, only serves to stamp out creativity, instill fear and suck the personality out of the human spirit.
ALSO: I'd like to say that some would argue that Richard Branson of the Virgin Corporation fame is our best known Billionaire Entrepreneur. He didn't get to where he is today by studying what the books say hard, he was a creative genius and that's the kind of person that you need to make from education.
Then there's Jaqcues Fresco, who some of you may know from the Zeitgeist Movement and Venus Project. This man has essentially created a blue-print for a whole new way of living, redesigned the world from the ground up. He told the crowd at the recent live event his story of how as a kid he was singled out of his classes and given free reign to read whatever interested him at school, as opposed to following the curriculum. At his first job at an Aviation company, his foreman told him he'd made more contributions to the company in 3 weeks than anyone else had in their entire careers, because he was a creative person, who'd learnt completely different things from everyone else working there, and those are the types of people who set the world on fire.