My experience watching two different approaches to money play out over 15 years among people I know.

Approach A (lifestyle maximizer): keeps housing cost below 25% of income, drives paid-off used cars, vacations modestly, invests 25-30% of income, increases savings rate with every raise. Current status at 45: $680,000 in investments, mortgage nearly paid off, low financial stress.

Approach B (lifestyle inflator): upgrades housing with every income increase, leases new cars, takes expensive vacations, saves the minimum to get the 401k match. Current status at 45: $190,000 in investments, significant debt, high financial stress.

Both have similar incomes — the gap is the savings rate and the compounding time it buys. The person in Approach A doesn't have a dramatically inferior lifestyle. They just made different choices about which upgrades were worth the compounding cost.

Neither path is objectively right — Approach B person may genuinely value the lifestyle differences. But the financial outcome difference is real and large.