While some people could be hired to be used to protect the various things the organization wanted to be protected, there would be those who would be hired to target others.
It would not be so easy for such people to be able to avoid harming others when they were forced into various situations since accidents happened during combat and sometimes certain situations demanded more excessive force.
Other areas of work required dealing with far more illegal matters like cleaning up after others or taking on more targeted work depending on the skillset a person possessed and much more.
Some organizations picked up people like Ash at times to make use of them as their hunting dogs since they would be easier to control and would be easier to pay too.
Others worked in more discrete roles whether it was helping to plan out things or even cleaning up after the work of others.