Smaller companies generally can't "pretend to be FANG" because the very best people don't want to work there, they want to work at FANG where they can get paid 90th percentile compensation (you already know this; check levels.fyi -- it's pretty staggering how high senior engineers get paid in all-cash liquid total compensation at these companies). If you are a top software engineer, why would you sacrifice 60-80 hours per week of your time and not get duly compensated for it?