I'm happy to see some of my favourite Steemians on this list: @mindhunter, @papa-pepper, @tamin ... They produce consistent, good quality content and they also engage with the community regularly. I view them all -- and likely everyone else you've mentioned -- as true community leaders.
Tamim is literally there because they upvote their own posts. They get ~$5 or so payouts from others, until they lift it with their own vote to $100+. They do this about 6 times a day.
Wow. That's nice work if you can get it!
Tamim is #25 in estimated value in the steemit world, and at 534K SP, an upvote will carry a lot of $$.