Westinghouse was all rotten from the beginning, they sold reactors like cigarettes packs and disregarded scientists' safety concerns. Just look at the guy at 15:21.
So how do you turn a whole unsafe industry into a safe one? That's a lot of organizational DNA to change. Might as well convert a dinosaur into a gazelle.
Dunno, probably act responsibly like the AECL (Canadian company responsible for CANDU reactors) has. Usually it's a management problem. Start by changing the CEO? The nuclear industry, just like aerospace, should be very risk adverse. It's no place for SV or tobacco company mentalities.
I am hopeful about the new crop of companies currently designing SMRs. This was probably the way it should have been done from the onset, rather than pushing single unit power to hundreds of gigawatts.
https://youtu.be/EviEN0ScOwg