I think you'd be surprised that top tier talent (and people in general) usually don't worship money and aren't willing to degrade their standard of living for an extra 75k annually after taxes.
OpenAI has 5k employees now.
Yes, you see these headlines about ml researchers getting paid a ton, well thats because there's 5k of them on Earth.
Unless you're a VP or PhD you're not getting life changing compensation. And guess what, all those people can get similar compensation elsewhere without slaving away 4 days a week in an office in San Francisco.
Your average employee is not making an extra 750k. You know you can look at compensation online you cant just do vibes based analysis and just invent your own reality. Find me a position at OpenAI thats paying 750k compensation.