When you're in school, 80k-100k sounds like an unfathomable amount of money. When you start making that, you realize the take home is much smaller. 80k is around 5400/month without state taxes. Then deduct the maximum for your 401k, because you are starting later than everyone else, and your take home is around 4000. Now you'll probably want a mortgage, so following the 30% rule you can afford about 260k worth of house with property taxes. Now you have 2800/month for food, cars, childcare, savings, insurance, student loan debt, and saving for your child's education. Say 500:month in car paymentsx2, groceries $500, 250 for college fund which won't pay for your kids education at all when inflation is accounted for, $400 for leisure+ eating out+ vacation fund, $200 for cable and Internet and phone.... You're not even thriving.
As you interact with the general population, you run into plumbers and cops who are making 100k. Then you run into physicians pulling in 300-400k. Friends who have married and were careful with their money are well ahead due to compounding.