Not directly related to FTX, but to the public vs. private discourse, if I'm not mistaken there are now a lot of pension funds and related financial institutions which have redirected a big part of their funds towards privately-owned unicorns/big companies through indirect means, and if those privately-owned unicorns/big companies were to do some shady things those pension funds would be much less in the know compared to if they'd invested their money in public companies.

One could make the valid point that those pension funds shouldn't have been (indirectly) invested in those privately-owned unicorns to begin with, but doing that would have most probably come with opportunity costs for those pension funds (as for some reason or another private big companies have been seen as bringing in more money for each dollar spent compared to big public companies, at least when it comes to the last 8-10 years).

As the OP implies, there needs to be some sort of balance between public and private companies, each of them need to be, in effect, more like the other in the eyes of the State/taxman, State-run regulators and the like.