Is it possible that the causation is the other way? FAANG doesn't pay well because its dispiriting and toxic, its toxic because it pays well. This attracts all sorts of behavior.
I mean, it paid well in the early-mid 2010s also and was way less toxic.
Out of curiosity, what has changed over time that has made it more toxic? I left Google in 2015.
It certainly had its share of toxic traits, but it was at the "what place doesn't?" level.