I don't trust any corporation to do what's right for me, only what they think is right for their shareholders,
I have no expectations of loyalty in a corporate world and give no loyalty back, if company x doesn't sell what I want I'll buy from a company that does.
I think you nailed it with this answer. It's not as much trust as it is limited expectations and loyalty.
Bear with me, but I'm a teacher by trade and I often give analogies. I used the saw and hammer correlation a few weeks ago, so I'll use another one...
I don't trust big dogs ever since a half German shepherd / half wolf or something almost bit my ear off when I was seven years old. Needless to say that I'm usually wary of big dogs and most smaller dogs ever since. The old adage "Once bitten, twice shy" also works for camera companies. That was true for me with Canon, otherwise I would still be using Canons today. If I only had CX lenses and bodies, I would probably feel the same way.
However, since Nikon 1 isn't and never will be my main system, I don't have the same level of concern, and I'm willing to bet that most members on this forum are in the same boat. In reality, if any of us have other Nikons, Canons, etc. then it's really not a big problem. Sure, our loyalties may change, but we may sometimes either completely trust our equipment (until it suddenly lets us down without warning, like the biting dog) or there's a tiny bit of distrust (like that lens for which you paid too much, yet is sometimes too soft or misfocuses, like the neighbour's dog that is "all bark but no bite").
PS. I've come to love some big dogs, but only after getting to know and appreciate a visually-impaired friend's seeing-eye dog. Knowing the cost and discipline that goes into a guide dog, that too is like a well-built and functioning camera system -- you use it for the purpose of helping you get results you want, yet there is a finite number of usable years before you finally realize that it must retire. My friend gets a new guide dog, the old one enjoys a few more years of just being a well-behaved dog, and I get a new camera -- the whole process of learning and working starts over again!
Loyalty, practicality and expectations, yes. Trust? Probably not always, but you certainly need to trust your chosen tools most of the time.