MSRP isn't designed to sell knives. Selling knives at MSRP allows the dealer to keep a very nice piece of a brick and mortar store, as well as keeping all knives in stock. In the online age, that just simply isn't how it works. No one, not even the company, is expecting people to pay full MSRP for a knife, just like the car dealer isn't going to expect you to pay full sticker price on a new car.
A lot of costs aren't in producing the actual knife, but designing it. FRN and other plastics need molds. Molds cost anywhere from $250,000 to $3,000,000 depending on how intricate the pattern is. The design of the knife, setting up stamps, lasers, heat treats, etc all add to the cost.
Sure that slab of AUS-8 may only cost $25 in materials, but then you have to take those materials, shape it (lasers), run it through a grinder (belts and discs), heat treat (heating costs and time), add the handle (molds), package and ship. That's also not taking into account the overhead of the company, it's employees and benefits, and marketing costs.
People get used to buying $5 knives that are made from pot metal in china and start wondering why a much better knife costs more.