Management jobs are gained (in my experience as a junior one sometimes) through performance, networking and team playing.
VERY few managers in aviation maintenance are actually academically qualified in the classical sense at all. Mores the pity.
It's a clinched truism (IMO) that very few academics make decent engineers or managers. A much more pragmatic blend of skill is required.
In other words, Kingston degrees are only of value when allied with wider pragmatic skills and experience. FWIW.