I don't think it's any sort of "scheme" but it's a sad fact that established breeders with good reputations are going to have a big advantage when it comes to sales. Not only that but the first ones to produce unique morphs are the ones that are going to make the most money on them- & that does tend to be the experienced breeders that have been "in the game" for a while.
And the saturated market for BPs has been around for a while now- I've lost count of how many newbies come on forums like this, determined to breed their snakes no matter how much we try to caution them. It's just like all the back-yard breeders of dogs that keep right on filling up the humane shelters- it's beyond sad, as far as I'm concerned, but far too many just don't listen. In their minds, they stand to make money by breeding their snakes- they most likely overpaid for what they have, & assume that anything they produce will fetch similar ("retail") prices, but it doesn't work that way- & especially when they don't even know what they're doing. They also fail to factor in all the COSTS, & usually have no clue about a business plan.And yes, some BPs end up as "feeders"....that's reality.
Breeding & selling snakes is a very hard way to make a living- mostly, it's a "don't quit your day job" kind of thing.