Suprised there was no mention of the Lego spill:
"Nearly 4.8 million Lego toy parts fell overboard from the Tokio Express container ship in a storm off Land's End on 13 February 1997."
https://www.bbc.com/news/magazine-28582621
Manufacturing cost for Lego pieces is relatively high, though, given the effort they put into keeping precise amounts of 'clutch power' for every brick.
Actually they're getting much better. I bought some off-brand Lego from aliexpress a couple of years ago, and apart from the lack of branding I can't tell the difference, even after two years of use.
Yeah, the reviews say offbrand tires are absolute crap but that is only element that has noticeable quality issues. Not so sure about electronic/pneumatic.