Eh... yeah, that's a tad hypocritical, I guess, but with Goku and his family, there's kind of a running theme going that allows them to be voiced by the same person. Personally, though, I'd have preferred if Bardock sounded like Raditz, since he was much more like him. Hey, maybe if they ever animate Gine, she'll sound like Shigeru Chiba. Wouldn't that be something? But fortunately, Sabat's Vegeta and Piccolo are distinct enough now for it not to bother me anymore.