Griffith did nothing wrong.
Please don’t sacrifice me to the God Hand just yet, I’m not here to justify the inexcusable nor reduce everything to the powers of fate and causality. Neither would do justice to one of manga and anime’s most compelling villains. I’d rather approach the argument from the opposite side to make the case for why Griffith did everything right and explore how Kentaro Miura created the perfect villain both thematically and as a human foil for his protagonist Guts in the deeply disturbing world of Berserk.
Check out my essay about The Perfect Villain over at ANN. The piece’s original title (“Why Griffith Did Everything Right“) has been changed twice since, but the argument remains the same.