I suggest you see this video because the entire series is based on power levels and scaling.
He always goes in his way into showing power structures and by default levels during the entirety of the series, not to mention Luffy is going for the TOP of that ladder, to become pirate king.
He always goes in his way into showing power structures and by default levels during the entirety of the series, not to mention Luffy is going for the TOP of that ladder, to become pirate king.
One Piece is about heart, adventure, camaraderie - fights and power scaling takes distant seat in the back.