Also committing to scrutinize the internal business practices of every future partner. It's easy enough to point at ICE and say that they're actions don't align with your values. But you're setting a precedent for your company - one that will be very hard to live up to down the road.
Mr. Crist is not just the CEO of Chef. He is also a citizen of the United States of America. As a citizen, he has duties that should take priority over his responsibilities as Chef CEO. By virtue of his position as CEO, his influence and his responsibility to wield that influence in the public interest are greater.