The ruling Dragons of the Spur - Kragadum and Shivala - are gigantic, old, and evil. They have not reached such a great age without some paranoia; and they have no problem employing a vast number of minions.
The Redstone Spur has one of the highest concentrations of true dragons anywhere in the kingdoms. This is because of the massive hordes that Kragadum and Shivala have been able to amass over the last 16 centuries. Wealth seems to act as something of a sedative to the dragons and the hordes here are large enough for multiple dragons to live and work together hospitably.