Are you suggesting that journalists promote greater truth than entertainers? Have you read the news lately? Truth isn't limited to mere factual correctness.
Take-away: Whether you're a journalist or not, if you're telling people a story that purports to be true, it needs to actually be true. Even in the case of 'pure' entertainers.
Fiction by definition doesn't purport to factually be true, so that's ok. Most philosophy doesn't, either. Most or all religious texts do, and so most or all religious texts fail my test.
Obviously, also, I mean actually journalists rather than those who play them on TV (Fox News etc).