At Meta, $400k would be high E4 or low E5. That’s someone earlier in their career who probably feels fairly anonymous and is used to taking all the deals they can get to live cheaply, even if they don’t need to anymore.
Salaries in the rest of the world really can't compete can they!
In the US, basically all of my spending outside of the basics is on things you could classify as avoiding ever being poor/homeless. No vacations or eating out or streaming subscriptions or “toys” or whatnot. Maybe these kids feel that same pressure but took it too far, into fraudulent territory.