Kind of a weird nitpick there. Democracy needs someone working to uncover things that the public needs to know to make informed voting decisions.
"Someone uncovering things" appears because in an environment where free speech is not suppressed political, economical, and ideological competitions create incentives to do it. Is it a newspaper, a TV channel, a blog, social network, telepathy, or something else which is used to disseminate information then is a purely technical issue.
Just because free speech is possible doesn't mean someone will take up the role of investigative reporter