For some reason Admin is appearing on Mantiix's, SMG's and my profile masthead rather than Bureaucrat. For now, I’ve temporary customized the sysop user group to display Bureaucrat, this however will result in any users added as Administrators to display Burearcrat on their profile masthead, even though they are not.

This can be permanently rectified by using custom javascript, however, as it is not automatically enabled on new wikis anymore, I've had to contact Wikia to enable it for us so we can use the custom script and get it fixed.
They should enable it for us in a few days.