On Thursday, Laura Ingraham suddenly apologized for insulting and ridiculing school-shooting survivor David Hogg — but only after she began losing advertisers for her Fox News show and under the threat of losing more. The previous day, Ingraham felt not a twinge of decency when she tweeted an insult about Hogg getting rejections from a number of colleges, sneering that he was whining about it. In response, Hogg called for an advertiser boycott of The Ingraham Angle. By late afternoon, Nestle, Hulu, Wayfair, Johnson & Johnson, Expedia, and TripAdvisor, and others had yanked ads from her show. Laura Ingraham could...