Whether it was Elysium, Inferno, or any other large organization, they all consisted of a large group of people. And naturally, they could not avoid the hard currency of mankind: money!
No matter how strong one was, the basic needs of life such as food, clothing, housing, and transportations were unavoidable. The larger an organization was, the more funds it required. The expenditures for all kinds of equipment and weapons, as well as the cost of settling down, was rather large.
In order to improve the overall strength of the members, whether it be the purchase of pills for the strength-type martial artists, or matching equipment for intelligent-type martial artists, the money spent was an astronomical figure in the eyes of ordinary people.
Money didn't grow on trees. Thus, major organizations could only raise the required funds through various channels.