Philippe Hildebrand, president of the Swiss National Bank, resigns The talented 48-year-old financier, the most powerful man in Switzerland, the president of the National Bank, Philipp Hildebrand, resigned at the peak of his brilliant career. I left for ethical reasons... The talented 48-year-old financier, the most powerful man in Switzerland, the president of the National Bank, Philipp Hildebrand, resigned at the peak of his brilliant career. He left for ethical reasons.