Why are chicken strips so friggin' expensive?

As my spouse and I were out shopping yesterday for food, an interesting query came about as we were passing the KFC.  What are chicken strips so friggin' expensive.  As we were passing, KFC was advertising  that their chicken strips were 3 for $4.99, but a 10 piece was $7.99.  There's a bit of disparity there.  

We continued past Chick-fil-A, and found that same paradigm to be in practice, except there, we found the strips more expensive than the sandwich, which makes even less sense!  Think about it, a sandwich is comprised of a large chicken breast patty, lettuce, tomato,( both optional), a delightful toasted and buttered bun,  and a strategically placed pickle.  Compare that price point to 3 strips of breast meat in a box.  

It is my theory that the Corporations have put one over on us!  Not just the American Public, but the Worldly Gastronomic Republic of Consumers that we are.  How are they able to get away with charge more for physically less?

So expounding on this fact, let's take a look a the Golden Arches.  Now it is obvious to me that the Chicken Selects are a higher quality of chicken compared to Chicken McNuggets.  Their price difference is understandable because the selects are for a more complicated and grown up palate, however; comparing the price point to the chicken sandwiches...something doesn't jive for me.  One would think that the sandwich has more chicken and more accouterments than the strips. 

I have scoured the Internet for an answer to this conundrum to no avail.  I leave it to you, the smarter and more patient public that may have a better answer than my frustration.