Some of you guys here really support PU from drugs...like wtf
You really don't care at all as long as it is a PU huh?
Zoro would still be in a cross if it wasn't for the super Mink Elixir
Seriously, this is building up something really interesting for Sanji, he didn't used the suit because he wanted to get stronger or because he lacked something, he used it on special occasions, like disguising himself and especially saving people that no one could, and thats exactly whats happened until now, specially with him saving Momonosuke
Sanji didn't changed his opinions about getting stronger in a fight with the suit, you can pretty much see it in the recent chapter. He actually got punished for that because it nerfed his body and dragged him down in the fight.
Even that Sanji is seemingly awakening his base Germa powers, ir didn't happened because he wanted to, it simply happened due to the choices he made, which were fair choices, that he either needed to suffer consequences or throw away his pride aiming a greater good for the others, from saving his family during WCI, to using the suit when he saw it was absolutely necessary. It is all about selflessness
"Suffering from success" is actually a pretty interesting sentence to showcase that.
Oda usually doesn't follow predictable ways, and i can expect something really special and unique happening to Sanji until the end of this fight and arc.
Zeff's existence is what influenced Sanji the most to make the choices he made and to be the person he is, not Judge.