Rayleigh accomplished something greater than finding the OP or being the Meme King, the table is set for Zoro.
Rayleigh and Shakky might have been the biggest power couple of the Roger era. They're the only two who received actual upscaling in these past two chapters.
He likely won her heart at God Valley by being her savior. Fittingly, Oda chose to debut Rayleigh by having him liberate Camie and destroy her cuffs using Internal Destruction. Maybe he did the same with Shakky, though he probably had to cut down others to reach her. I'm thinking Rayleigh defeated the Holy Knight with the skull mask. That one would fit an underworld theme.
Interestingly, his parallel Zoro freed Robin from her cuffs by defeating Kaku and obtaining the correct key. And Zoro also won Hiyori's heart by saving her from masked Kamazo, who wields scythes like a Grim Reaper.