You're gonna keep ranting like that or are you gonna do something about it? Freediving is getting bigger and bigger all the time. Padi offer the PADI Skin Diver certification. Since you're a divemaster now, you can teach it (
http://www.padi.com/courses/pro/divemaster.asp) and certify people yourself!!!! This mean selling new course, making money, if you follow padi's course policy, PADI will keep you out of trouble, they'll even protect you in case of trouble. They will be more customer for the dive shop. Start a program, get some customer, i'm sure the dive center will help you afterward. The definition of a problem is something that have a solution.
Good Diving
P.S. you could also sink their boat, rape their dog and sell their women into slavery but that's just me
P.P.S Their's a nice "edit" button at the bottom of your post in case you want to change some stuff once you cool down.