We had a really shitty government for two years now, who did only one good thing, and that was to raise the general tax deduction, making our workers get a bit more net out of their gross income, and even the unions protested, because they "cared" about te governments budgets.
Now with the government change, we expect them to scrape that (because that would mean more money for the government, and the poor (their voters) would be least affected), and the paroles they'll use go along "taxing the rich". On the other hand, as you said, if you're rich, the "progressive" tax rates make it worth it to avoid taxes by funneling money around, and we (engineers, developers, etc.) get fucked, because we earn above average (and get hit with taxes hard), but still not enough to make it worthwile to do the whole tax-avoidance (legal) thing.
When your size allows you to hold the pen when writing the tax laws, tax does not apply to you.
Tax is something the wealthy and society extracts from the taxable classes. They don't extract it from the rich, it is in direct opposition to the nature of being rich - rich is something you become, by being exempt from the rules that apply to 'lesser' creatures.
And if the low-income classes do not provide taxable income, I wonder why the republicans are so hellbent from prohibiting poor people from getting abortions. It suggests to me, they DO believe poor people serve some purpose, given that they insist on creation of new poor people.