you can have only that little wooden cart while they are driving all the Ferraris and Porsches

still better than not having anything while they'd still drive all those supercars

They're usually always propping up their whole operation on a series of open source wooden carts they picked up off the Internet. Those carts are the foundation that makes everything work.

As we saw a couple months ago, a core part of how Internet security works had a giant hole in it, and it was all because one dude had some kind of mental breakdown and handed off development to an attacker.

Even by your analogy, yes I'd rather have a wooden cart compared to carrying things in my hands.

That said your analogy doesn't apply to tech. "It just doesn't okay" isn't a very satisfying answer from a logic standpoint, but as the other user pointed out almost all corporate software is built upon, or massively, and I mean massively relies upon the efforts of Open Source software.

I can't really think of any other industry like this or an analogy for this, but that is how it works. Example: GNU/Linux is FOSS, and is the go-to for server software for businesses, and it's starting to creep into end user products too, from Dell laptops to Raspberry Pi to the Steam Deck (if you're familiar with that - Proton is also open source).