the problem with this is that you can base your votes on previous games. If there is a 50/50 for example, and one was previously the imposter, you are statistically more likely to vote out the imposter correctly solely based on how the game is made rather than what happens during the round.
if you want to be impostor more often, play with less people. If you play with 10 people then everyone's has 10% chance of being impostor, everyone has the same chance.
Or, you know, play with 3 impostors if you're so desperate for being one.