Quote Originally Posted by Sentenal
Arlong never hurt any of his Fishmen minions, only Nami, who he considered a "sub-human" (lol you get the idea) slave.
Nami was still technically a part of Arlong's crew. Nobody sane would say Hitler didn't hurt the jews (only the Iranian president does, but he's not sane), and those jews were his subjects just like every other citizen of the Third Reich. But he considered them sub-human. Justifies zilch.

But still, FireEmblem could be right. I just don't think freeing Crocodile would be wise because while the man could cause some distraction breaking free, it's still guaranteed he would do nothing at all to actually help Luffy or Ace, yet the contrary would be assured if he saw a chance. That should be true for Mr. 3 as well, actually, but in the end it wasn't Luffy personally who turned him in. So, Mr. 3 should just blame himself.