I think it is very much possible that someone who is original and intelligent might not do well at school. Our educational pattern does not encourage application of mind, Still conventional and stereotyped methods are in practice. The teaching is meant generally for mediocre or ordinary students who learn by rate and excel in the exams.
As a result of it, exceptionally brilliant students who have interests in specialised kind of knowledge, aave suffer. They have original ideas, but they hardly get any chance to use these. Such students are sometimes considered failures. But those who are dullards at school sometimes turn toppers during their later life. And sometimes the toppers don’t do very well after they finish their education.