Being extremely principled is exactly why many of these companies and/or their engineers might be tempted to put their thumb on the scales. After all, this election or this issue or this whatever is just so super important that it would be immoral not to take a stand...
I mean, just think about how many people have been saying literally that for this election! If anything, the strongly principled are the ones I'd worry about the most.
Find me any significant system in a company like facebook or google where only 1 person or even only 3 or 4 can sneak something in without anyone else finding out about it.
