Question: How legal is it to replace a Planetary governor?
Scenario: The Rogue Trader party is on Fervious in the Calixis Sector. For those that are unfamiliar with the world, Fervious is a feudal world in the Drusus Marches Subsector. Murder is not only common place on the planet, it is also traditional, particularly as a way to achieve high office. Death Cults are rampant on the planet, quite possibly providing easy recruits for the Officio Assassinorium. One special export, however, is found on this planet- Styger milk. The milk can neutralize a poison, thus, on a planet where murder is commonplace, drinking the milk is a good way for the nobility not to get killed. Similarly, ranchers can get fabulously rich selling the stuff.
The RT group however, is on Fervious to either destroy or take over a tech-smuggling ring- a minor endeavor, but they're just starting out. And after some discussion, they decided to find information about the smugglers through the ranchers (or rather, the Arch-militant single-handedly charged a force of horse-riding rustlers with nothing but his fists, and one macrocannon blast later, earned the respect of one of the ranchers.) To make a long story short, the rancher would give information about the smugglers if the RT group eliminated or merged the competition with his own company, making him one of the most powerful men on the planet (of course, the RT group would also get a cut of the profits).
However, being more powerful than the planetary governor is a risky business. If the RT group is successful, what's to stop the governor from dispatching the PDF (or the Imperial Guard) to stomp out the rancher? Thus, how legal is it to replace a Planetary governor? If a planet maintains its tithes will the Administratum look the other way if the governor is replaced? And if the RT group is complicit in such actions, are they branded as traitors?