It's sort of interesting that it's an effective advertising technique to highlight something that has nothing to do with the product you are trying to sell.
The message of that ad is only marginally "our burgers are tasty." Mainly it is, "wouldn't you like to have sex with this hot bimbo?" As far as I am aware, the purchasing of a Hardee's burger doesn't allow you to have sex with a hot bimbo, and sufficient consumption of said burgers may in fact decrease your chances of having sex with a hot bimbo.
I guess it works, I suppose there is market research and such to back it all up. Funny how our mammalian brains function...
One of Bill Hick's better known stand-up routines was the commercial that advertisers really really want to do if only they could get away with it. Camera starts on a close up of a beautiful woman's face...slowly pulls back showing that she's entirely nude...legs spread, fingers between her legs..."Drink Coke".
"I don't know about you but Coke's on MY shopping list this week..."