Apes and Angels

Sorry, but when one of the characters asks a logical question about the mission (specifically, why are we even messing with the natives of this new planet when we have this great technology and can fulfill our mission without them even knowing it?), and promptly gets shut down/dismissed/ignored because they might find out about it many years later, and besides we want to do this other thing (investigate them) that has nothing to do with the actual mission and can be done at any time after the so-called deadly peril passes, then I'm done reading. I had wondered about this particular question in the last volume and wondered if it would ever get addressed. Well, it did and it was completely unsatisfactory. In fact, this has put me off the rest of the series, too.