I think there can absolutely be incompetent governments, like say an idiot country that puts a game show host in office.
Then you have the game mentality that you have to pick the candidate with the most chance of winning that still shares some of your views, or that the polling shows your higher pick will lose. Ranked choice could really help here.
By the time you get to the general election it's basically a choice between a shit sandwich and a shit sandwich without the bread.