its logistically not feasible. then hasbro would be setting up 2 depts for QC, a regular one and another that oversees the salvaging of rejects. their deal is profit via maximizing distribution. theyre not a mom n pop organization that needs to micromanage production. they know the amount that reach distributors is more than the amount that reach buyers (hence toys going on clearance/repackaged). salvaging from rejects is peanuts.