On this question, David Heinemeier Hansson's talk at YC's Startup School 2008 still holds up great today. Was the first time I heard of the concept of the Fortune 5,000,000
I used to use their HEY email service until HEY decided to ban all societal and political discussions for employees. Which sparked a huge exit of talented people from their service.
Video: https://www.youtube.com/watch?v=0CDXJ6bMkMY Transcript: https://indiefounder.substack.com/p/full-transcript-of-dhhs-...