I know what you mean, I've pointed it out as well in Anime/Manga related discussions.
I don't know why but the Japanese like to–and they always do–draw a powerful/badass Japanese character who looks like a western guy, and when I say western I mean "European" looking. I don't know why they do that, and I've seen people discussing it in Quora many times, but nobody knows the true reason. Some of them suggest that that's because of "Western" culture influencing Japan, but that doesn't make any sense because non-badass characters are drawn as Asians. Like WTF? Look at Kinemon, Denjiro, Izo etc. They look Asian, although some of them not as much as Kinemon, but still. Zoro, Oden, Ryuma, Zoro's father have ZERO Asian traits, they look like "White" guys, well maybe except Oden, but Oden doesn't look like human either.