Here we go...
Most of the people I have seen writing (and upvoting) these kinds of comments have never worked for a startup, and they are bitter (for one reason or another). Or they have worked for a startup and it's failed.
Are you really trying to look out for the best interests of all those poor, mis-guided people working for all those cruel and single-minded startups, or are you trying to convince yourself that your own life decision to work "for The Man in [your] day job in a cold corporate environment" was the right one.
I spend A LOT of time with former startup employees. They are happy with their decisions. I say former because many of them have been a part of an exit, and are now working on their own companies...with some cash in their pockets, an impressive rolodex (of investors), and a good reputation because they were part of a winning team.
Most of the employees of early stage and recently funded companies that I know are happy to be where they are. They work late because they are passionate and enthusiastic and they like to win.
Keep putting them (and the startups that employ them) down. You're cause is really noble.