I wonder if the mainstream community shares the worry prompted by things like Ubuntu's Amazon feature.
As the community labors to expand the use of Linux, something Ubuntu does more successfully than others, it's inevitable that many of those new users will not share, and will not want to share, or even be aware of, the values of "the community". They won't be concerned about Ubuntu's Amazon hook. For many (most?) people, the computing experience is almost entirely comprised of interaction with services like Amazon, Google, Facebook, etc., via browsers and assorted tablet and phone apps. People may or may not be aware of the data retained by these services. But, they certainly do not seem less inclined to use them. Just the opposite.
I think it is as unrealistic to expect people to avoid using services or software they like just because the data they generate is recorded by third parties as it is to expect people to stop using telephones because their provider tracks and records the numbers they call.
Privacy issues -- especially the creation of data pools potentially susceptible to future abuse by new actors -- are real. As Linux attracts new users, the percentage who worry about those issues enough to change how they use their software will shrink. I.e., the Linux community will be dominated by users with little or no interests in the ideological pursuits of the current "community", however relevant.