There are a lot of good, normal and competent people that could run or serve in political office.
They won’t do it because it would expose them to all sorts of scrutiny. Everyone has skeletons in the closet. So if a decent person runs for office the bones are all brought out. Not only them but their families face hatred and ridicule when that happens.
I’ve known candidates who tried to clean up corruption start getting speeding tickets along with the rest of their family. It can get bad enough that trumped up charges are filed, search warrants served and “oh my gosh! They found child pornography on his computer!”
Because good people are afraid to run the vacuum forms.