User blog comment:Kaido King of the Beasts/Chapter 809: Catfights and Mammoth-Sized Bounties/@comment-7606564-20151204003826

I don't think We should base the power of an individual solely off their bounty. Though their power is the main contributing factor to it, their are other considerations which cannot be left out. My point is I don't think we should consider jack to be twice as strong luffy. I think it's reasonable to assume that atleast.... idk a fifth or so of his bounty comes from having his name tied to kaido. Remember that the more powerful a crew is, the more wanted all of its members are. I'm not really sure how to articulate this thought correctly, but jack definitely isn't twice as strong as luffy (I think maybe 1.3 x luffy). His bounty only shot into the heavens because the world know's he's one of kaido's right hand men.