Top 5 reasons why whales posting content is good for Steem.

• You can swim along side them and eat some Krill. Early voters can get curation reward.
  
  
• They will never be able to spend their profits. It's little amount compared to their balance. It is like depositing 5 cents into your bank account; would you feel more rich? I doubt that money ever hits an exchange.
  
  
• New whales are being born every day in their wake. You can see new SuperUsers appearing on the Trending listing.
  
  
• It promoted better quality blogs. A few weeks ago, it was pretty sad to see some of the post getting the big $$$. The quality is noticable better and hopefully gets better from here.
  
  
• You find out how the whales think. Their concerns, direction, etc.
  
  
  ...Just my opinion. I hope to be one someday.