As I recollect, missions are like field staff members in that they get commissions for the services their "clients" take at higher "orgs." The "class V orgs" I believe also get commissions for the people they send to higher "orgs." It's very "multi-level."
You can look at the "grade chart," http://www.whatisscientology.org/html/P ... 181_1.html
to see what level of "org" can deliver which services. Missions can deliver "the student hat" and all the introductory courses below that. They can deliver auditing up to and including "expanded dianetics," which "handles" "evil purposes."
One of the first things Kirstie and her executive director would have done would be to recruit people and send them to be trained as "auditors" at a "class V" or higher "org." Kirstie would most likely have had her staff trained at "flag." "flag trained" staff have way more prestige. If the policies that were in effect, when I was on staff, are still in effect missions are allowed to charge more than the prices set by upper level management. Having "flag trained" staff would certainly justify doing that.
The higher "orgs" are, by policy, not supposed to hijack mission staff sent for training. Kirstie probably had enough clout to get that policy observed. Higher "orgs" have been known to hijack very talented or dedicated mission staff that were sent to them. This was considered the "greatest good for the greatest number of dynamics" despite policy.