Since the knife vendors were metaphors for AI vendors, is the comparison you want to make "AI vendors & weapons manufacturers"? That's the standard we should judge them by?
> Not sure why knife dealers would be assumed to be more moral than firearms dealers
What I mean is that you _did_ judge them by a standard used for weapons manufacturers. How you react to their actions _is_ your judgement.
But perhaps that is the standard we should use. Weapons manufacturing is a well regulated industry after all. Export controls, dual-use technology restrictions, if it has applications for warfare it should be appropriately restricted.
It's about how we think they will act.
Especially when it comes to sales to the US military, I have no expectations about how companies will act.
Hell, just look at how many companies willingly helped China with their Great Firewall.