If you're a brand selling the basics - food, auto, financial services, household products - avoiding some other basics in your campaigns is a good idea, namely sex and race. But it seems that marketers are still turning to these age-old shock marketing tactics.

Unsurprisingly, some of the most recent examples have resulted in charges of sexism against what should be some of the most basic American staples: soft drinks and hamburgers. First it was an app for a PepsiCo ...