my take would be the bowie design refers to the basic profile. thats the wonderful thing to me about a bowie,, how the maker interprets , and creates what he considers the perfect bowie.
ive seen them as hunting versions,fighting versions, wall hangers, camp knives.extremely embelished and almost mud fence plain. and every one was beautiful in its own way.
i think the style of grind then , would be a creative design aspect that would be left you the vision of the maker.