In the process of shoehorning characters into ludicrous situations, logic often falls by the wayside, as when Alice hits upon the idea of moonlighting as a sex worker.
Du Bois moonlightedas aspiring flight attendant, sexworker, housewife, socialite, etc. (or so I'm inferring), and so Crosher (or at least Crosher's image), through du Bois, moonlightsas all these things as well.