Government is the only thing that can counteract the power of corporations to redistribute wealth to themselves. Yes, Obamacare is an example of that.

And there are the future effects of the tax bill if we are ever to pay down the debt to consider, as Eric mentions. A study by the Congressional Budget Office about 12 years ago examined the effect of lowering tax rates by 10% in all brackets. They found that it would result in a net transfer of wealth to the rich, to be paid for down the road by other, not so rich Americans. This study is mentioned in Wikipedia under the Laffer Curve. Here it is. I know about this because I just wrote about the Laffer Curve a few days ago.

https://en.wikipedia.org/wiki/Laffer_curve