What is Gatsby's motive in offering Nick work?The Great Gatsby by F. Scott Fitzgerald

In Chapter Five of F. Scott Fitzgerald's The Great
Gatsby, Gatsby make plans with Nick for him to orchestrate the meeting between Daisy
and himself.  As they talk on the lawn, Gatsby offers Nick a job after Nick has already been
approached in Chapter Four by Meyer Wolfscheim, who has said to Nick, "I understand you're
looking for a business gonnegtion."  So, when Gatsby rather indelicately asks
Nick,

"Why, I
thought--why, look here, old sport, you don't make much money, do
you?"

Gatsby then offers Nick a job as
a "confidence sort of thing."  This offer has two implications attached to it.  First, with the
previous encounter with Meyer Wolfscheim in Chapter Four, and now with the rather nebulous offer
of a job in "confidence,"  the mid-Western Nick is insulted by the suggestion of illegal
activity.  Added to this, Nick feels insulted by the offer made "tactlessly for a service to be
rendered."  So, as a matter of pride, Nick "cut[s] him off."