Orange was voted in, they can't oust him. Plus being president of the United States tends to come with a lot of power. Jensen only has a 3.6% stake in the company and no supermajority requirements like Tesla has. This second relationship is with a vice president who reports directly to him. Many have been ousted in the past for having relationships with employees in violation with company policy, e.g. Intel's Krzanich and Nestlé's Freixe.