Pure, unadulterated greed.
I spent less money getting a full set of premium brand tyres, delivered, fitted and balanced for less than this for a Honda Accord.
Nah just a normal enterprise premium, it's not for consumers (basically just like the Mac Pro itself, XDR Display, XDR stand). Prices like this for enterprise items is good for the economy and are in most cases (though these wheels are an exception), something enterprises earn back multi-fold in saved time and time = money.