Why play farming style with a jungler that has great ganks?

Hai rope I was in the same boat and sky rockted down to 1210 i think now I steamrolled back up to 1300 hopefully higher soon. Ive been playing primarily jungle and yes its good to farm but its good to know when you to gank( expecting to get a kill or blow a flash either is good). If you gank and they flash don't get discouraged and label it as a failure label it as a success cause you now know for 4 minutes they have no flash so camp away. Also mid game like stated earlier force fights roam as a team catch people off guard take objectives push towers rinse and repeat till late