Man, even going that far into that detail doesn't matter. Luffy beat Crocodile and Enel without Gear 2, and he needed Gear 2 to beat Blueno by his own admission. Different opponents require abilities.
What matters is the total effort to take down someone. Someone like Cracker gets taken down as a gag. This was the aftermath of Doffy's defeat
Luffy and Law are not enough. Zoro, an army, and an Admiral pushing back his birdcage. Dressrosa is completely destroyed.
No one but the Admirals and Yonkos have this kind of portrayal. Only the best of the best get final villain raid boss privileges, i.e. Doffy, Douglas Bullet, Big Mom, potentially Kaido, etc...