Since IOI 2014 participant list was released in mobile app a couple of days ago, I have processed it and it is now available in IOI database.
Finally, the participant list now marks golds with 1st — 5th absolute ranks as such and sorts them appropriately.
UPD: It turns out that the information in the mobile app was incorrect/outdated. The database was updated. Contestant-wise, serious changes were made in teams from Colombia and Egypt.