It is helpful to understand what the statistics refer to.
Unfortunately, the league tables themselves have influenced behaviour in schools (not the student variety, I hasten to add, but management).
By using 5 A-C as a standards, it shifted the focus on getting D students up to C, and ignored the ones who were easily in this standard. They entered students for Foundation level for a guaranteed C (maximum), rather than Higher level where they risked a D. This then knocked on into A-levels where many schools won't let you do the subject if you don't have at least a B. So you pick 'new' subjects for A-level - medya, etc.
The most stupid thing is when they pick something like ICT and decide that it is worth 4 GCSEs. I'm sorry, but it is just not. There are lots of skills and personal development, but it just simply does not trump something like French, English Lit or Chemistry.
There is a hierarchy of A-level subjects but this is not reflected in grades and points. Geography (thankfully an academic subject) has the highest number of A grades, but it is nowhere near as difficult as a Science.
The saving grace is that most employers will see through the difference and they will value a C (or even D) in Physics above many A grades.
I think that accountability in education is vitally important, but league tables are shallow and lead to a change in behaviour which is not good and does not benefit the student. I am always skeptical about league tables.