Vegeta's entire character existence post debut arc is about him trying to compete and surpass Goku's power, Zolo never has any goal or ambition to compete with his captain Luffy. Zolo wants Luffy to be stronger than him as he clearly said in Fishman island that Luffy is the captain so he should be stronger, meanwhile Vegeta doesn't want Goku being stronger than him and competes with him. Huge difference.
Underling position to someone like Luffy is related to badass as far as I am concerned you retarded ZKKloser, if you want to cry like a bitch by quoting my subjective opinion about who is being badass then keep crying like a bitch its entertaining to see ZKKbitches crying.