I am not sure I understand any of this.
By chance I know people who work part time at Bournemouth University/AUB. People who have had established and sucessful careers and who are now mixing some teaching with freelance work/self employment. Great people to me taught by if your interest is in a digital arts/media/marketing sort of area. Ditto if my DC were heading for BBC type grades I would prefer them to want to take a finance degree at Bournemouth with the scope for a year working in a back-room function within one of Bournemouth/Poole's many banks than perhaps a less vocational degree elsewhere. Any many people go because it is their local University and do not see the need to invest in three years living away from home. I assume there are plenty of Universities with a similar offer. And I know it is not unusual, say in finance, to find people who have worked their way up from a local backroom operation to a transfer to a more senior job in the City.
The big and contentious question then is whether, as some seem to suggest, fees should be cheaper because Bournemouth is a less prestigeous University, with the corollery that staff should be less well paid because the don't undertake "research".
Ultimately I assume staff pay is a function of supply and demand, within the straitjacket of University funding. So Oxbridge may have vacant professorships because they can't afford the salaries internationally reknown Professors can command. However in some subjects there may be a ready supply of post-docs willing to work freelance for relatively low pay.
Whereas it might be worth Bournemouth's time, like the football team, to invest in key staff so they can make their way up the divisions.