Ever notice how billionaires like Warren Buffett rarely flex their wealth through flashy spending? You'd think unlimited money means endless luxury and high-end consumption, but that's not how mega-rich individuals actually operate. The wealthiest people often maintain surprisingly modest lifestyles—simple cars, no extravagant displays. It's a fundamental wealth principle: sustainable riches come from disciplined spending and smart capital allocation, not conspicuous consumption. The gap between net worth and liquid cash flow matters more than the headline number. This mindset separates those who *stay* rich from those who *get* rich and fade away.