It's the same.
...You think Zoro is going to leave Luffy and die again just because Mihawk shows up and he can try his dream again?
After Thriller Bark? After submitting to Mihawk? Really?
You really don't understand character development.
Just like Sanji learned self worth and to go for his own dream and not throw his life away for Zeff in the Baratie arc.
Zoro learned to value his captain and others throughout the other arcs. Skypiea where he says he doesn't fight for a motivation, but after looking at Chopper says he can feel one coming on.
Zoro and Sanji are two sides of the coin.
Sanji had no self worth and sacrificed for everyone, and had to think of himself for once to be what Luffy needed, which culminated in WCI.
Zoro had no motivation except to himself and had to come to risk himself for others and not just live only for his dream as he learns in Skypiea and culminates in Thriller Bark and Timeskip.
Once Luffy's PK and accomplishes his dream then they both would now die for their dreams if it came to it.