If a person is unhappy about the bureaucracy of the large org they can find another job in a startup. Or they can find a better job in a smaller, better managed organization. Or if they’re feeling lucky, they can even start their own business.
If they currently hold a senior position in FAANG working on innovative ways to sell more ads, that step will likely involve a substantial pay cut. Still, IMO brilliant engineers are relatively well-compensated across the whole industry. The work they do normally generates a lot of value for the employer.
They should be generally fine financially even without these millions of stock options. And they will be probably happier working on the innovations which do something good, as opposed to inventing models, methods, and apparatuses to advance the ongoing enshittification of the internet.