If Jamie were more pretentious, he would call himself Robin Hood. If he were a better person, the name might actually fit.
As it is, he's just a guy who enjoys the finer things in life, and is unconcerned about things like 'morals' and 'the law' as long as he gets them.
Adrian is the definition of a finer thing.
(Alternatively: Jamie seduces society's darlings. The rich, the famous, and the infamous. Then he robs them blind and disappears into the night, leaving them heartbroken and nursing a terrible hangover.
Adrian is charmed despite himself.)