What you didn't get right was my example. I'm not talking about a situation where Microsoft is pricing a $100 product at $80. That does not result in wealth destruction, as you explained in detail. (It does result in less $$$ in Microsoft's bank account, though.)
My example was specifically about an Xbox that people were only willing to pay $80 for, and that Microsoft spent $100 to create. (Obviously, $100/$80 are illustrative, not actual figures.)
I will continue to assert that spending $100 to create a product that no one else values at more than $80 does, in fact, destroy global wealth. And that that is a Bad Thing, not "wise". You're free to continue to tell people the opposite.