Typical conversation in a consumer product company, I lived this many times in my 30+ years as an engineer:
Engineer (E): Now that the product is done, we need proper packaging for the life of the product
Supply Chain Fooker (SCF): Yeah, how big would that be and how much?
E: Should be 20% larger to allow for real world usage and made of stronger material than the product to sustain it. We have this prototype for $4, which in a $500 product pricing is nothing and people will rave about it, free advertising
SCF: sounds great, send us the drawing and specs and we will take it from here
E: Thank you, drawings and material specs in your inbox, can't wait to see it on the market
SCF to their boss: we have a 5% reduction target from our incompetent management to hit before we get our bonuses, lets find a cheaper fabric material and source it competitively in a reverse auction
SCF boss: sounds great, fook the engineers, this is our money we are talking about
SCF to their boss: We got this cheap ass material from China, and the vendor made a prototype to further reduce costs, and is 25% smaller. Cost is $0.79, we will get huge bonuses for that cost reduction. Looks good and people expect the bags to be sheet anyway.
Many months later:
Engineer in consumer store looking at product: suuuns of beetches......SCF strikes again.....