i used to work in advertising
in the 80's-90's
and i can tell you that a pretty good percentage of those in the 2nd-3rd tier
(ie not catwalk and not true fashion or fashion magazine editorial standard but rather advertising and catalogue and the top lad mag ones)
could be `booked` for various `jobs` once you got to know them, or were introduced (ie tipped off) to the right ones
happy days
dunno about now, but i bet there's a lot of drinks, dinner and handbags being bought and gifted