I really do not think that someone being well-paid is justification for treating them poorly. Surely an employee should just be treated well, period. I actually think your line of thinking here is incredibly dangerous -- you seem to think that if someone is well-paid it's okay to treat them like dirt, as if you have to balance things out somehow.

And regardless of how well-paid any of them may or may not be (keep in mind these are not just the developers), they all might have made real sacrifices in their lives to work for Amazon without realizing what they were getting into. Quitting a beloved former job for what appeared to be a much needed pay raise, moving cross country with your family, etc...

I'm not boycotting anything but everyone has a right to be upset when they're mistreated.