9. Pierin Vincenz – Bumpy Landing

Pierin Vincenz

At the pinnacle of his power, the former Raiffeisen boss was a high-flyer. The dismantling of Pierin Vincenz illustrates that he had lost touch with the ground beneath his feet. Swiss regulator Finma rummaged in his past, looking for conflicts between private and bank investments during his time as Raiffeisen as well as payments firm Aduno, which he presided.

This month, Vincenz stymied the probe himself, but relinquishing his last job in finance (chairman of insurer Helvetia). As a result, Finma was forced to mothball the fitness and probity investigation, because Vincenz no longer holds any jobs that are subject to one – an ignominious end to the 61-year-old former UBS investment banker's career.

Vincenz spent years bolstering stuffy Raiffeisen into the leading mortgage lender in Switzerland. His plan for an integrated finance firm, with wealth and asset management, didn't bear the same success, but deeper insight into the Graubuenden native's strong suit: given the chance, he wouldn't change anything about his career, his said following his exit from Helvetia.