I’m not sure if that’s entirely true in STEM disciplines.
Economics is kinda borderline, and can go either way, from insightful to insipid. But, its complicated, sometimes STEM-like, sometimes not.
The Econ prize has gone to Hayek friedman stigler buchanan coase
And a fair number of other very solid pro-freedom economists
Lots the other way as well but more balanced than peace or lit prizes.