I have never heard of someone being asked to work more hours, and I imagine a manager even bringing it up would be very taboo.
This all applies only to my team, as I'm sure there are some at my company under more pressure. But the point is the same: why would anyone do this to themselves? We may be in a bubble, but at least for the moment, software developer is a cushy job with lots of great opportunities available. Why anyone would work 100 hour weeks in a sweatshop baffles me.
Who cares whether it makes games better or worse? I'm sure I could put out a better product if I worked 80 hours instead of 40. But I'd rather go home, sleep with my girlfriend, read a book, or (heh) play a video game. Our CEO is doing fine and doesn't need my charity.