Because you are comparing China to the US.

In China you need to appease state goals. In the US you need to appease investor goals.

China will keep funding them regardless of their income, because the goal is (ostensibly) a state AGI/ASI. In the US, the goal is an ROI which may or may not come with AGI/ASI.

They are different economies with different goals. We can look at past Chinese national projects and see that they are fine with burning $50 to get [social goal] that's worth $5.