Why is the argument that they must profit off it while legal while also lobbying against it? Why can't they lobby against it and not profit from the erosion of our civil rights?
There's also a matter of business competition. If Amazon stops worrying about profits, leverage, and expansion, that leaves areas that competitors can move in _within their domain_. This is why it seems all the big organizations behave sociopathicly: it's required to be on top.
Laws are designed to create limits on corporations to explicitly express how big businesses can behave, and it's not the businesses fault that those laws haven't been keeping up with the times.