Who said that the Irregular Tamers Guild consisting of mutated charm ability users couldn't be as influential as other guilds?
Actually, they could. This guild would not only win in terms of monetary and rarity value but also in the number of guild members.
The percentage of ability users owning a charm ability, no matter what type it was, is actually quite high because others didn't think it was that powerful or rare.
Most people's charm ability was always seduction, and it wasn't as powerful as Ainsley.
Thus, these people weren't as scarce as alchemists, monster tamers, beast tamers, summoners, healers, array masters, priests, hackers, and so on.
The charm ability users were considered 'common' and had no use other than becoming spies to seduce people.