They already received their positive return. By paying Hillary for her speeches, they blocked her from credibly moving to the left on financial reform to fend off Sanders.
The Gramm-Leach-Bliley Act of 1999 repealed Glass-Steagall [1], in part to make a merger between Citicorp (a bank) and Travelers Group (an insurance company) legal.
Goldman Sachs did not win from it. They were on the "protected" side of Glass-Steagall's wall. Fees went down after JPMorgan and friends were allowed to throw their balance sheet around.
Only if you include monetary policy, directed by a Federal Reserve chairman appointed by George W. Bush, the same man who signed into law the bailout programme.
Goldman Sachs was far from the chief recipient of those funds and had to pay back the bail-out funds (at a profit to the U.S. government).
