Assume an "effective" average pay (i.e. "net" pay + retirement and other deductions, inflation-adjusted to today's dollars and averaged over the course of your career) of $120k/year.

From age 22 to 40, you've earned $2.16mm in inflation-adjusted-to-today dollars as a single earner. With a not-unreasonable average savings rate of 30%, not accounting for tax-advantaged growth or any growth at all, you'll come out with $650k of inflation-adjusted-to-today capital in savings.

Realistically, this should end up invested in some kind of equity (housing, stocks, bonds, whatever). If you finance the purchase of a house at 30, you're only 10 years into a traditional 30-year mortgage at this point, for reference. So you're roughly 1/3rd of your way to owning all the equity in your home. That's fairly comfortably a $1mm home (home equity being 30% of your assets at 40).

Of course, if you're DCA-ing into something that yields a modest average of 5%/year in inflation-adjusted returns, that $650k is closer to $1mm inflation-adjusted-to-today capital. And you still have 25 years at that point for your retirement savings to compound. And you can work part-time in something more fulfilling until retirement to supplement your income.

YMMV, but the marginal utility of money beyond $1mm in equity at 40 and $6k/month in expendable (on rental housing, food, travel, social events) income during your 20s and 30s is pretty small for most people. If you add a partner with any kind of income to the mix, it makes the marginal stress of earning more money even less appealing.

Edit: the main thing you ought to avoid like the plague is lifestyle creep. Spending money on things with zero or vanishingly-small happiness ROI. Read this story every year or two, or whenever you get a raise at work. https://www.marxists.org/archive/tolstoy/1886/how-much-land-...