Then you know little about Goldman Sachs work the last few decades.
Goldman Sachs employs 37,000 people. Would you call all of them what you called Heidi Cruz?
Some of their people work with subprime mortgages, and a significant amount of their work in that area was sleazy or worse. I have seen no indications that Heidi Cruz worked in that area. Considering that her work was primarily managing investments for people with over $40M in assets, I very much doubt that she was ever involved in the parts of Goldman Sachs that generated their bad press.
Other Goldman Sachs professionals do asset management, mergers and acquisitions, and even government securities. I have no doubt that some of those employees are of questionable character and that others are admirable people. One of my close friends worked there for a decade and loved it - then retired to raise kids and fish in Alaska. I have seen no evidence that Heidi Cruz was involved in anything that justifies your attack on her.
Finally, I have seen no evidence that attacking the wife of someone 30% of republican voters admire will make those voters more likely to vote for Trump in November, if Trump gets the nomination that he is likely to win. Whatever your issues with the candidate’s wife’s former employer, do those issues really justify alienating so many conservatives and increasing the odds that Hillary will win the election in November?