Apart from the Demon Gods, there were also a lot of legendary creatures in the Realm of Devils to help the Demon Gods with daily affairs.
Thanks to the jungle rules in the Realm of Devils, those Legendary creatures could keep a place under control even though they weren't good at administration.
But of course, it was impossible for them to do a great job in developing the economy and infrastructure.
All the Demon Gods asked was that their subjects didn't rebel every other day.
Therefore, the lords in the Realm of Devils were literal experts who were very good at fighting.
Scorching Locke worked for Sidi, who mastered the desire of mating.
Pure lust was corruptive and irrational. Those who were enchanted by Sidi would mate until they died.
The lovemaking that the Goddess of Love was in charge of was regular and acceptable.
The difference was whether or not there was enough self-control.