The major factions in the city couldn't care less because these wanderers know their limits, and those who hire them are often businesses and shops, not rival factions.
If they were to actually deal with the wanderers in their territory, it would be like telling all wanderers in Chasing Light City that such businesses won't be allowed on Black Obsidian Martial Arts Hall's turf anymore. For this group of desperadoes, it's as good as a death sentence.
If Black Obsidian Martial Arts Hall were to do this, even if these desperadoes didn't immediately resist, other suburban forces would see Black Obsidian's flourishing territory and would likely do the same. By then, in all Chasing Light City, there would be no soil left for these wanderers to survive. Fighting tooth and nail would be inevitable, unless they left the city.
