public synonyms and roles when moving a db with data pump

I've always wondered if there was some elegance in data pump that I was missing.  The problem I have is with regard to local public synonyms and local role definitions.  These don't seem to s come over with impdp INCLUDE=SCHEMA when I want to move just my local users to a new instance/system.  My klutzy method usually works, but it isn't pretty since I have to sort through hundreds of built-in public synonyms and roles and figure out what is locally created and what isn't.    Is there some way to get these moved without my hand holding?