I wouldn't assume that everyone "revelling in it" is flight crew. Remember that this is an anonymous forum...
It is sad to see such a low wage, but the job is a popular one, and market wages are what they are.
At least it seems to be duty hours and not flight hours, so scope for around £15k might exist, all in, which is the equivalent of £18k in the real world once the lower tax rate on duty pay is taken into effect.
I can see quite a number of experienced customer service-oriented people being attracted to such a role.