If you can make it into a FAANG/MAMAA/whatever flavor of the year acronym, you can make it into most tech companies (and still make a salary that's more than enough to live a dignified life and support yourself, and family if you have any).
Working at Facebook as a software engineer is a choice; just like working at a bulge bracket investment bank is a choice.
The type of people that choose to work at either of these two are (more likely than not) people who do not have morals or a sense of character and values.
In my experience, being a good person only works when you're interacting with good people. If you're a good person interacting with a "bad" person, you tend to get a worse deal -- and if not alert, will unconsciously "sink" to their level, and start mirroring their behaviors in order to not get a bad deal.
Sooner or later, you're surrounded by "bad" people and have become a "bad" person yourself, simply by moral "osmosis," all because a few "bad" eggs spoiled the quiche.
I have been the type of person that naturally gravitated towards the "money money money" professions, because I did not have any strong role models to build a value system. Now that I'm out of that moral rut, I do not wish to go back. Just like an ex-addict who decides not to associate with other ex-addicts, because the chance of relapsing increases exponentially: I do not want people without any moral compass dragging me back down to their level.
I like the way things are. Things are good. Associating with Facebookers will make things bad. I don't want things to be bad.
I've tried very hard to express this viewpoint, without making value judgements, but it's moot: I have standards for what it means to be a good person, and Facebookers do not meet my standards -- so I won't associate with them. I won't hire them. And I will avoid collaborating with them.