In 2019 only 25% of students achieved the grade A, even less for A*.
There may be thousands of people in the institution you work at with A/A* but I can assure you that there are many more thousands who haven't reached that level.
I don't think academic achievements should be diminished, whether it's A levels or passing your driving theory test.
I'm not a fan of Josie but she should be proud of her grades, she did well.
Of course she's greedy, a scammer, a racist, a snob and thoroughly unpleasant... good grades don't change that