Indentured Servitude outright is a no-no, as it's a little too close to slavery for the creator's wishes. A Gilded Age style of it is better, where the workers are all supplied by the Corporation, which just does what it can to keep workers indebted into the company. The corporation ferries you to the planet [for a price], you work for the corporation, but you pay rent to the corporation for living conditions, you buy food and supplies from the corporate-run stores, etc etc. So, yes, the workers do start indebted, but outright servitude however is frowned upon; that's pseudo-slavery, and is a HUGE no-no with one of the creators.
Manipulation of the populace through drugs may also be frowned upon. That is, like Soma of "Brave New World". If you want the Corporation to have control over the planet's Healthcare system? That's an entirely different and acceptable form of control. But drugging people to make them passive is probably too far.
Don't forget, corporations have alot of power in the Solar Union, but the Transit Authority does oversee them. (Although how much is a question) Should enough of a stink be made to the Authority (or the S.U.'s Special Prosecutors), then the hammer is coming down on the Corporation.
Crime Syndicates & Terrorism are acceptable. Both are major aspects of a "Free Colony" organization. Remember, "one man's rebel is another's freedom-fighter".
Again, I can't speak for Joshua and Soren, but I hope i'm close enough to their line of thought.