I can see that ratio well enough incoming, especially in the NW.
DR [700-801]: Luffy/Law meet Doffy @ 758 & Bird Cage at 745. So it was a 45 to 56 or almost 1:1 setup to calamity ratio
WCI [825-902]: Luffy/Kat fight @ 879 & Hunger Pang (BMP vs SH) @ 846. 21 to 56 or a 1:2.5 ratio.
WANO [909-973 (958-973) (973+)]: 50 ish chapters of setup to Raid, 14 Oden FB chapters, calamity @ 997, we should expect another 80 chapters to end wano, 50 for the fights at least, holy shit.
We gon' be here a WHILE boys

Payoff is Luffy becomes an "Emperor", Will of D stuff, 3rd RP, SH Bounty of defeating 2 emperors, Rest of the World, etc.
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Rocks must have been a fucking monster to have other monsters on a leash