Remember when trump said Hillary was in with Goldman Sachs, and implied all these suppositions because she gave them a private speech. It was actually something very often brought up during the campaign.

Well, he must have had a change of tune because this bill will reduce their tax bill by 35%.

The analysis projects that the bill will save financial firms $250 billion on corporate taxes over the next decade, a 35 percent cut from what otherwise would have been a $715 billion tax liability.

This was one of the most repeated talking points of the election, over and over we heard about her secret speeches to Goldman Sachs, the implication being she had shady Wall Street ties and would do them good once she was in office. This bill is what doing them good looks like.
Don't take my word on it, hear Trump himself explain her shady financial Wall Street ties:

Then, when she left, she made $21.6 million giving speeches to Wall Street banks and other special interests – in less than 2 years – secret speeches that she does not want to reveal to the public.
Source

I don't care about saying Hillary would have been different, but more than the line of "she's an elitist with and she's in Wall Street's pocket!" was a massive deceit. The elites most certainly still got theirs. The man acted like their enemy to get votes. And now here we have an incredible deal, a gift just in time for Christmas.

Link for more of who is making out in the bill, and where I got the numbers above.