Nobody gets to have unbounded information about others. It's weird that you think there should be no privacy constraints.
what if these “others” voluntarily apply to a position where they have regular contact and help take care of your children? is it ok then to be informed on whether or not they are a convicted child rapist?
Why are you saying unbounded when the discussion is about court proceedings and convictions? There is a clear and consistent boundary here, no one is asking for search logs and round the clock surveillance.