If you know something that's of value for making money you want to keep it a secret. Information isn't valuable but information differential is.
Yes. To me, your point underscores that (my fave insufferable "dual pair" of treasure) Taleb is more like an orthodox economist than he'd like to admit, and PG is more like a (fin)techbro than he'd care to admit. The pride differential in the info differential, I think?
(What role does gender/species play here, ha, I haven't thought much about _that_)