There are achievements and achievements. Not everything is straight-forward. Very few achievements are achieved solely by the achievers. My brother's ex-wife is French. Her children (bilingual) got hauled in front of the school, every year, for 'outstanding linguistic achievements' and awarded prizes and books. They are bilingual. Mine went to Alliance Francaise from age 5 and they are nowhere near as good as their niece and nephew.
In our small day school (without its own sports grounds) they celebrate sports achievements which have nothing to do with the school, it is embarrassing. We have a school magazine, where they regularly publish about our pupils winning horse-riding competitions, and skiing competitions, and the school does not offer these sports.
In our small private school tutoring is rife - but everybody keeps schtum about it - teachers understand tutoring goes on, parents know it, but nobody says a word - no, no, no, we don't have tutors is the mantra. By virtue of working where I am working, I know who receives maths tuition and by whom at our school, and how much is paid for it. However, everybody pretends that 'high achievers achieve by themselves'. Nobody comes to the state to receive a maths prize together with the tutor who crammed with them.
I am a firm believer in 'Everything you have was given to you. Why do you boast as if you did not receive it?'
Having said that, I would be the first to applaud a state school child with ill-educated parents who studied hard and achieved good grades despite the odds - those children's achievements should be celebrated both spiritually and financially, I think.