You're thinking too far into this. It's an established character design that functions as a shorthand for "womanizing playboy" in the same way something like "
girl with short bluish-gray hair with reddish eyes" is shorthand for "emotionless robotic girl" or "dark hair in twintails with tsurime eyes" is shorthand for "tsundere girl" or— in more western media— how "buff bald guy with sunglasses and stubble" is shorthand for "military captain."
Sure, it's a stereotype, but that's just how visual mediums like these work. By taking inspiration from a previous design, you give your readers / viewers advance warning on what sort of character they're looking at. Sometimes these are subverted to surprise the viewer, but it's the fact that these stereotypes exist in the first place that manga like this one even work.