I think we can all agree that Bojack, as the main character, beats many if not all the main cast when we talk about being morally corrupted. Still, who have you considered a " worse person " — the definition of bad person isn’t really precise I know, but consider it as " person who does actions generally considered deplorable by the public. " — than Bojack while you were watching the show?
It feels like you missed the point of the show in how you’re framing this question. There are no good and bad people. There’s just people who all have their traumas and reasons why they act the way they do. I would not even agree with you that Bojack himself is “morally corrupted.”