>>281972738
He fought him because he is his rival and no genocide is going to stop him from taking a golden opportunity to take out competition. Roger is what Luffy says he is, but in his case doesn't stop to save the kingdom or whatever.
>Oh, this prisoner doesn't want to tell you the location of the treasure map, Captain? >Don't worry Captain, I'll teach this scum why I'm infamously known as "the Painmonger"
