If anything, theae people working late are getting seriously ripped off.
Not only do they lose health, mental peace, the joy of life, and happiness -- they also end up effectively making less per hour.
I don't think they do directly; but, there are a lot of bad managers out there to value hard work and firefighting above all else. So it's very common to see the distribution of rewards slanting heavily towards the "24/7 available people."
An anecdote from my past: two simultaneous projects; I'm the lead engineer on one and another person, more senior than me, is the lead on the other. I work with my team and we deliver ahead of schedule and with features that the product managers had become accustomed to being told, "no, that's too hard" by the engineering teams. The other project fell far behind, had the whole team working in a war room 12-18 hours per day for weeks.
Guess which team got big bonuses and publicly recognized for their work?
I left a few months later.