zoro was ready to throw away his dream and pride for the sake of his friends.
luffy didn't want to become a pirate king if sanji didn't come back to the crew.
sanji is just a selfish prick.
when we finaly got him kicking big mom to save his sister, oda came and destroyed that idea by saying sanji didn't hit big mom he just countered her attack with another attack. it's just bullshit.