I'm not sure what you're getting at the start, because you even say the difference between Big Mom/Kaido in other posts is scale. That's the only difference between Enel and Lucci, and it's far more likely Lucci has murdered more people given his role in the government and his love of murder.
I think Big Mom valuing cookies over the lives of others, over their belongings, their nations and future pretty much puts her on the same spectrum as people like Crocodile or Enel but neither go out of their way to actively hurt people. For Crocodile it's just business, for Enel it's an ego / power trip. For Big Mom it's about her absolute greed over human lives.
And yeah yeah, no, I said Kaido's statement is a hyperbole but that doesn't matter. In a war he wants to wage, it'll lead to millions suffering. He does not care about them or the ramifications of his goals. It's not like Goku at all.