Why would anyone care what Einstein had to say about governance?
Pertaining the "atom bomb", Oppenheimer was instrumental in managing the Manhattan project... Einstein was sent a letter that described, at a high-level, what was going to be worked on, asking whether it seemed legit; he replied, essentially saying, "yeah that should work".
Einstein's only contribution to science was the photoelectric effect, which also leaned on the prior efforts of Alexandre Becquerel, et al.
Everyone leans on the shoulders of giants; it is neither secret nor shameful.
This is not to deny there are embellishments in his life story. Personally, I suspect his “Miracle year” was him publishing his wife’s work as his own [0]. Given systematic sexism of the era, there is at minimum reason to at least suspect she would’ve had difficulty publishing herself, so even this isn’t as harsh a claim against Einstein as it would be if it happened today, yet it would still be embellishment even at the time.