The issue is that you conveniently leave out parts of the equation like how usable the design is and how it affects customer purchase decisions.
> how it affects customer purchase decisions.
If nobody wastes energy in a stupid way like this, what changes? Are they no longer buying cold things? So what, then you sell more of the stuff that doesn't need refrigeration.
If there were two identical supermarkets, and one had running taps, and the other turned off their taps after using them, and paid their employes 5cents more a month, I would shop in the second one. But I can't, I don't get the choice, because a bunch of bunch of marketing people convinced someone to get an "edge" over the competition, and then told everybody else they have to, too, or they'll FaLL BeHiND.