Luffy also lost to Aokiji and Crocodile. Hell, he lost to Crocodile twice! And y'know what? Luffy couldn't even save one friend! Just ask Bartholomew Kuma! You wanna vote for a failure of a captain like that?! His crew didn't even listen to his order to retreat! They tried taking on Kuma! The man has no authority over his own tiny crew, folks… How very sad...
Yup!!! Luffy lost to Aokiji, we all know Aokiji just want to show off so bad that he have to defeat Luffy. It not like they survive or anything after got send flying by Kuma. You're totally right!!! protecting your nakama is a sin, everyone should look out for themselve when they're in danger. Oh yeah!! We all know that Luffy want to die back at Alabasta because his dream of knowing the void century have too many enemy, but Robin never let him give up.