Otherwise, how could these male cultivators enjoy it simply out of lust? It's also a form of cultivation, just a different kind of consumption.
This world is so absurd. The class system within the Immortal City is even more rigid and blatant than in the secular world. Only the high and mighty aristocracy can enjoy "freedom".
Take Chen Quan's "Chen Family" for example. The children born in their family are far superior to ordinary loose cultivators.
Of course, people born in Sky City are also fortunate, as they are far luckier than those in the "Lower City" beneath the Immortal City.
These cultivators in the "Lower City" have to reach the Foundation Establishment Stage at least to enter the Immortal City, yet the probability of success is less than one in ten thousand.
Observing Chen Quan's "memory" reminded Liang Sheng of how steady the operation of the Immortal City was.