I am not sure I follow. They "give it away", because they have to. They have to pay any of the model companies. What do DeepMind's accolades matter if it's commoditized, as you propose?
AI resources will remain scarce for the foreseeable future: I have to literally wait multiple Minutes to get an answer for semi-hard coding problems. The current demand is the delta between this, and the few milliseconds that it could take if supply was there. I suspect the tension will grow. Why would there not be multiple companies positioned to capture value? Assuming that any of them can turn demand into profit, that seems to be the most likely story right now.