Fred, you really are so far up your own arse on this one, that we're planning on sending in a cave rescue team to try and get you out of there.
Firstly it devalues the soldiers and junior officers who contribute so much in today's forces, particularly on contemporary operations. You clearly underestimate the complexity and responsibility that we now expect our soldiers to cope with, from eighteen year old Privates handling multi-million weapons systems, to lowly non commissioned officers flying hugely complex Apache helicopters.
Secondly you clearly do not understand the difference between a graduate and a potential officer, the two are often far from synonymous!
Thirdly, you overlook the esprit de corps and can do attitude that leads people to the highest ranks - the reason you so often see people with public school backgrounds in the forces is because frequently their Fathers were in the forces too, and the military paid for their schooling because of the disruptive effect of frequent moves on children's educations, the CCF system in public schools, and the desire to achieve arrived at through their family example. This is not an example of nepotism or an old boys network any more than an Electrician or plumbers son going on to become one himself.
Finally, you overlook the fact that so many officers have degrees that they obtained through military sponsorship - they often would not have been to university if it was not for the forward looking, progressive outlook taken by the forces.