Could you give Blue and red Buff the Herald treatment as well?
Donating the Blue buff to your laner is always super punishing as a jungler, since you lose the gold from the camp (most times AoE also kills the small ones), so just do it like you did with RIft Herald, make Blue and Red Camp drop a little coin or sth that can be collected by rightclicking it (from distance, so Midlaners can still take Blue from the other side of the camp), so that the jungler can kill the Monster but the laner can still take the Buff.