It rather seems to be the lack of irresponsible megalomania, which actually fuelled the GE/Westinghouse frenzy. And I can hardly blame anybody for the lack of it, because for all the better... Our planet has became smaller in the last 50 years, and running (tea)pot operations would be a tough sell, even on Fox. But obviously (offshore) oils rigs and gas are no better either, though people are still happy with oil running their cars and data-centres.
But useful lifetime/economics of scale/TCO does matter, because ROI in the strict and sole monetary sense is the only metric of success. Note, that most reactors have been rubber-stamped to operate beyond their design lifetime.
And imagine the powerlines in a play, where Seaborg himself feels he can only act as a puppet -- randian rationalism doesn't work in society. (I do not agree/disagree with all of the comments above, just note)
you see now too -- the alloy is not the problem.