I would also input the background of the Bounter Hunter character as a factor.
Example , Is the Bounter Hunter an Ex-cop? If he was a cop, then he might be more inclinded to 'step in'.
If the character not an ex-cop or someone with a law enforcement background...then he might just shrugs his shoulders and wait for the Wanted Poster with a bounty to come out. A 'what's in it for me'.