I can't speak to his work on finance as a whole. Regarding deep time, his claims about pre-literate society from archeology are not widely supported, they use thin evidence to argue badly.
His anarcho-socialism isn't the concern. It's his lack of historicity, and inability to bring his peers with him on radical ideas which concerns me.
He's dead, he can't defend himself. So there's that.
As for Graeber being controversial: yes, though I vaguely recall "The Dawn of Everything" being (moreso) the trove of interesting historical anthropological hypotheses, rather than "Debt"?
Anyway, it's been a while, but my main point is that I wouldn't let Graeber's controversial-ness stop anyone from reading Debt. If anything, going in with that information makes you think harder about the topics he covers.
I saw this in the flesh at a book festival. Dale Spender, a notable feminist author who moved sideways into IT tech (she was involved with online learning systems) did a book talk and the majority of questions from the audience were "Gotcha" attempts about here philosophy and feminism, with nothing to do with the subject at hand.
This is all spawned from insecurity that your prestigious degree or whatever can be replicated through independent learning
I am not so certain about this. In particular being exceptional in cybersecurity does not make you good at playing political games or having the traits that a lot of bosses want from employees (I will attempt to avoid starting a discussion whether I consider such traits to be good or bad).
2. One example of a trait that many bosses desire, but is not a social skill per se is docility.
So, yes, such as doctor who excels at health science is very likely a really good doctor, but this does not imply that this doctor will excel in every position in the medical system for which doctors are hired.
This is very consistent with my claim that I don't think that "being exceptional in cybersecurity is a pretty good indicator that someone will be successful in other fields".
This is XKCD #793 all over