That's why limiting attack and defense OR having Orochimaru seek you out, seeing as your overpowered, OR letting the higher people attack those that are protected by ranking rather than strength, should be put into play.
That... or make temporary ANYTHING unable to effect PvPs at ALL.
Sure they have a choice, but ask yourself. Can, in the Naruto world, a Jounin kill even Hokages? Or Anbu at that? It doesn't matter on strength. Hokages and Anbu have strategy. If you want a realistic Naruto based game, speak out. Don't be afraid of those that don't.