Imo
YES !
However,
A single tournament should not decide major factors in the game, however they should have an impact on the story itself.
Individual RPG or settings scenes should not also be able to alter major decisions.
Player voting as experienced still is the best way to decide major routes for a family, clan or the empire itself.
Only heavy major settings like Gencon or Winter Court should have a heavy impact on the story line, but only if taken as a whole.
ie
Voting - Players make a decision to make war against another clan, or decide who to aid and what resources to use
RPG and Tournament play - players decide which champions, families, resources to send, and on what quests, tasts, or goals ( ie: quests will still be subject to success/failure, would force the players to make good decisions like not sending a ronin to the imperial court just to have him killed before he reaches the gate)