That's my guess as well, especially considering Rocks' "I'll be back," line to IMU. He's more into the inherited will stuff: he knows that if he fails, his desire to see the world toppled (which was Davy Jones' desire as well?) will simply find another conduit to occur further down the line. IMU can delay it all he wants, but it will happen: MJ & the WG
will fall.
Whereas BB strikes me as self-important, the kind to think
only he can pull this off, only he has the right to do it, so he can't die--and when death will come knocking? BB will not accept it, so he'll go on trashing and screaming, the ultimate humiliating death in the OP universe.
Yes. Oda may have fucked up in his recent portrayal of Roger, but the two are still opposites sides of what a pirate can be: Roger sails the seas for adventures, treasure, and idols (sigh), whereas Rocks barges into places, bringing havoc and destruction, and having no qualms with killing people if it means attaining his goal--which is just power; absolute power.
It's hardly the same.
This wasn't a fight for BB. He went to MF to brag to his adoptive father's face, and WB not only wouldn't have any of it, but was serious about teaching BB a lesson. The moment WB locked in
and decided to quake BB in the face, BB became terrified for his life and started to beg WB to stop. I think BB sees himself as to important to die, so he'd never smile when the moment comes, whereas Luffy (as shown at Loguetown), Oden, and other Ds simply accept that c'est la vie, and go on without regrets.
I don't think anyone stayed loyal to Rocks, and in the end nobody lived a decent life either. Kaido was defeated without ever making a change, otherside of keeping Wano stagnant. WB lost all of his sons. BM became a tyrant to her sons. Ochoku was offscreened by Rocks' own son.
It'd be interesting if Rocks indeed "cursed" his own crew because they betrayed him when it mattered most.