Ichigo goes into monologues about service more often, being there when people need him, etc.. Not so much about what's right (although that's all there indirectly). I think both ISFx can get to the same place, but the way his character is written makes it seem like his F is focused outward as a rule, not as something that stems from Fi.
"I ain’t such a saint that I can promise to risk my life for strangers. Neither am I scum enough to sit quietly by while people are getting hurt before my eyes."
"The power wielded in my hand was gained for her sake!"
"Do you know why the big brother was born first? It’s to protect the little brothers and sisters that come after him."
He could be T.. he's somewhat "harsh" like one at times, but so are many ISFJs. ISFPs generally are not.