If governments make ex post facto changes to the tax law, you create a volatile business environment that turns off new investments especially from overseas investors. This is why countries that nationalize previously private enterprises without notice end up screwing up foreign investment. Who wants to start a company in X country if at any time they can say "No, too bad. Pay me 90% in taxes now."

Because "the government" is composed of the same people being lobbied to by Apple.

Yes. That's the point.

We elect those people. We get what we deserve.