It's a reasonable question, and one that I've debated at length with friends, but which cannot be addressed satisfactorily in a brief exchange of internet comments :)

During the golden years of big tech in the states, when employee retention was king and it was pretty much impossible to fire someone who wasn't completely useless, I think it was a pretty good deal. Although East Coast work culture has always been pretty intense as you describe, a lot of West Coast people I know had good balance between work and everything else. Some people chose to work very hard and chase promotions, and others chose to go home early and spend their time with family or doing hobbies, and both ways were considered acceptable. The better companies offered 5 weeks of vacation, and people would go completely offline during that time, although some people would have to be cajoled by their managers to actually take the time off.

Recently it feels like things in the US have gotten much more intense and stressful, although the pay is as high as ever it does feel less worth it. People compete with their coworkers not just for promotion but for survival. There are still pockets where you can have both high pay and some sense of job security, but they are much scarcer than before.