All 3 Uses

reprobate
in
Gone with the Wind
(Edited)

It shocked her to realize that anyone as absolutely perfect as Ashley could have any thought in common with such a reprobate as Rhett Butler.
Chpt 2.12

reprobate = unprincipled person
It wasn't fair that a reprobate like Rhett Butler should have so much and she, who carried so heavy a load, should have so little.
Chpt 4.36 *
Mrs. Kennedy can't afford to be seen driving out into the country with that Butler reprobate, who isn't received in the best parlors.
Chpt 4.36

Definitions:

(1) (reprobate)
a person who behaves in an unprincipled or immoral way; or behavior that is immoral or unprincipled; or (less commonly) to criticize such behavior

Reprobate is sometimes used affectionately to describe someone who breaks rules in a charming or amusing way.
(2) (meaning too rare to warrant focus)