An example: BR TM Andy really wants some of his favorite ice cream but can't afford it/doesn't want to pay for it. Luckily, Andy finds a case of it in the freezer that is within a month or two of expiring. Andy ensures that this case never makes it to the floor, hence is never sold, and must be QMOS'd. Andy takes it home under your system. Andy is rewarded for bad behavior and the store (potentially) loses money.
If you don't think this sort of scenario, or something similar, would occur many dozens or hundreds of times over the hundreds of Target locations in this country, you're admirably naive.
We may not all think it is fair, but it is trashed or donated for a reason.