Shanks would absolutley be scum. He has the bloodline of the creators and he uses his strength to defend these weaklings. No way Figarland cares about him now
Remember in like marineford the gorosei talked about the warlords having 3 empty position because of jimbei.
They said jimbei is necessary to have peace with the fishmen.
In a way the gorosei are protecting the scums.
Does figarland thinks the gorosei are scums or does he thinks they are just doing what they have to do to have order in the world?