Look, this is all getting out of hand so lets summarise:
Number of empires built with officers who bought their commission = one
Number of empires built with officers promoted on merit = nil
Officers who are promoted because they are decent solid chaps with a good family background whose fathers went to school with my father = world domination
Officers who are promoted due to "leadership" qualities = defence cuts, officer management strategy booklets, business speak, mission statements, and Saif Sareea