And if I were as wealthy and respected as Carmack in the industry (and as sharp) I would also be building rockets, supporting Linux gaming and similarly quixotic but awesome enterprises.
I love that supporting Linux gaming is "quixotic" and up there with rocket science. Too true.
It's a hack, it's not meant to be a broad commercial product. It's not much different than the test engines he builds for experiment. You're indeed being unnecessarily cynical.