There's "no other job where you get paid to tell the truth...we are detectives for the people." The late, great investigative reporter Wayne Barrett, in his last column for the Village Voice.
Because “journalism is a discipline of verification,” that journalists consider the commitment to verification and accuracy a “strategic ritual” and part of their “professional identity,” which is “something that legitimizes a journalist’s social role as being demonstrably different from other communicators.” A devotion to accuracy is the value that journalists add to issues and stories in the information ecosystem. Barbara Gray, Newmark J-School, The Emerald Handbook of Modern Information Management, p 421  Kovach & Rosenstiel (2014). The elements of journalism.  Shapiro, Brin, Bédard-Brûlé, & Mychajlowycz (2013). Verification as a Strategic Ritual. Journalism Practice.
As a journalist skepticism is your job. As a citizen skepticism is a survival skill.
Check out this ad campaign created by Mark Graham (CD, Art Director) with Josh Tavlin (CD) and John McNeil (CD) for Brill's Content: Skepticism is a Virtue. [Thanks to Mr. Graham for granting us permission to use this brilliant graphic].