And I also wonder why these storage shelves are designed to destroy all their product and bury anyone who’s close to them at the tiniest bump.

Having worked in such environments before...

Partially because management refuses to bolt them to the concrete floor like they're supposed to be, citing "expense" and how it makes the floor layout "less agile," or whatever the fuck their excuse is this week. In cases where the crossmembers are also supposed to be bolted, I can virtually guarantee you that they are not. Bonus points for the racking that they purchased not being rated for the amount of load they insist on having their workers put on them, also to cut costs.