Did not realise believing in a mission is akin to joining a suicide cult.
Work doesn’t have to suck. It doesn’t have to be everyone’s calling. But it is for some of us, and sixty+ hours a week can be time well spent. My time at start-ups has been time around colleagues I love, work I enjoy and a mission I believe in. (I was also decently compensated while there and exorbitantly so on the upside.)
There are countless public servants, non-profit employees, artists and public-company workers putting in those hours and more finding reward in their work. No need to deem everyone who doesn’t fit your lifestyle an idiot.
Me? I'd rather do what I can to make Art. So it's nice that I can get a software company to subsidize it thoroughly.
I'm just glad I can get paid effectively for being Skilled instead of laboring with my Skill. Availability is the best ability after all.
It's a suckers game: the default behavior needs to be "when the founders get greedy and kick me out...what will I do then? How will I feel about that time?"
If the work is for financing a life outside it, yes. But if the work is rewarding in itself, then said failure is—while highly disappointing—balanced by the relationships, stories and skills gained therefrom.
This is absolutely a risk tolerance and personality matrix thing. I just want to push back against this recently-popular philosophy which idealises the Western European work ethic and lifestyle. It is one among many local optima.
Employees are too likely to be screwed over, even if the company is successful
I will agree with you - it's probably batshit insane for a working stiff without a good chance of a $2mm+ payout to be working 60+ hours/week for years on end.
Amdahl's Law
The only exception I'd personally make is to found a startup with people I enjoy on a problem that I'm personally motivated by. This is basically a band for capitalistic nerds. Even then, you still have to allow VCs to suck out your soul.