I guess you are referring to the Tragedy of the Commons[0] but in the market efficient economy there should be enough producers(supply) to serve high aggregate demand. This action by NVIDIA only shows that GPU industry is highly concentrated and that more competition is needed. It seems like NVIDIA is a victim of its own success since it can not produce enough GPUs.
And if they simply raised prices and made huge profits, they could afford building their own fab, or at least outbidding other companies for TSMC/Samsung/whoever fab capacity...
[0] https://en.wikipedia.org/wiki/Tragedy_of_the_commons