User blog comment:Ducksoup/Why We Don't Unblock You/@comment-24707114-20150924173157/@comment-5558012-20150924173620

The Admin clearly edits more. Some regular editors edit more than Admins. There are no universal edit requirements for Admins or Bureaucrats, unless stated on the wiki. Also keep in mind that edit count doesn't always correlate with edit quality. The Admin could make that many smaller edits while that Bureaucrat could have made all new pages.

Edit: It's also good to note that Bureaucrat is the highest user rights group for most editors and doesn't need to be given out if the wiki already has multiple Bureaucrats. Some wikis also have a max limit on the number of Bureaucrats allowed on the wiki.