[robbrown451]

Sure, but the burgers are a critical component of the whole picture.

It's almost like saying that grocery stores are not really in the grocery business, they are in the business of accepting cash and credit card payments. True, that's where they "make their money", but that business would dry up pretty quick if they didn't stock groceries.

[Semiapies]

Yes, it's how they "really" make their money in the sense of how precisely the money goes from franchise owners to them, rather than anything surprising about how the money is made.