Luffy didn’t even put much effort into his punch. From what I can tell, it was just a light punch. This was one of Oda’s gags. He looked physically fine right after, so it didn’t do much of anything.
Also, Lucci went into his Leopard form and used Rokuogan just to deal a blow to her face.
This isn’t the same. Don’t make such comparisons just to fit your agenda unless you can actually prove that he is stronger than Luffy.
(Fun Fact: He isn’t, lol)