Or countries or points of view.
Point is, plenty of people can afford it, if they want to and give it priority over other things they may need or want.
How that goes is really a personal thing.
It is also true that with my yearly cost on health insurance alone in the US I could afford a very substantial watch every year. Same for education. While my family in Europe has universal healthcare AND a private insurance plan that is very very comprehensive and costs a year about what I pay in one month. Same for education, there are free choices and private choices. For university the public choice is as good as it get's, for high school not so much.
Even admitting the 100G Gross or 80 Net is not average in the US there are a lot, a lot of people in the US making that salary. Hell, when I was a waiter in New York 25 years ago I Mae 125 to 150 a year. Yes, I was a waiter in high end restaurants but still, a waiter.
Ironically when I become a manager I had to accept 48 a year....but it paved the way to a career so it was worth it.