Deliverance,
I think quite a few Ppruners would have some sympathy with your argument that the rank balance of the RAF is out of kilter. But you need to have a little more respect for the facts if you want to be taken seriously.
4226 is no more nearly 5550 than 75 is nearly 100.
And what about the Sqn Ldrs who are specialist aviators - or doctors, or dentists, or chaplains, etc? Many hold the rank more for pay purposes than because they will perform command/staff functions.