Did you have actually have a local election decided by one vote? If not then your vote didn’t change the outcome

Not me. It's usually vote for the person on the ballot or not at all. Either way, the person wins and could not care less what my stance is. In the rare instances there is a choice, the ordained person usually wins. In the even rarer case the non-ordained person wins, they flip and carry on the status quo they claimed to be fighting.