There's What We Were Sold vs What We Actually Got.
Take inter-racial romance, or, as the insensitive say, race-mixing.
Sidney Poiter as a Potemkin POC unicorn, some brilliant doctor with a mission to Africa, and some breathy little blond (Hepburn's niece), with Hepburn and Tracy to lend authority.
It's what merchants call a "loss leader", a product whose real cost you undervalue in order to lure people in so they are more likely to buy into the more expensive stuff, what costs them more.
The vile Kardashian females partying in the subway with repellent rapper Chris Brown and his posse of savages.
All part of Rev.