On Tuesday, the shareholders of JPMorgan Chase (NYSE:JPM) voted for Jamie Dimon to remain in his dual role as chairman and CEO. In spite of the media hoopla leading up to it, the voting shareholders cast their ballots based on Dimon's results, and the outcome speaks for itself.

The man, the myth
Dimon is a polarizing figure in our business culture today. He's brash, confident, blunt, and probably a little arrogant. He fumbled his initial handling of the London Whale fiasco, but he responded promptly and aggressively as the scale of the scandal become clear. He reshuffled his management team, beefed up risk management, and publicly admitted mistakes were made.

Even President Obama straddles the Dimon dichotomy, criticizing the bank for the London Whale scandal yet still squeezing in praise for "one of the smartest bankers we've got."

Since Dimon became CEO on Dec. 31, 2005, JPMorgan has never reported a quarterly loss. That includes the record $21.3 billion reported for full year 2012, making the London Whale losses pale in comparison with the company's overall earnings power.

JPM Net Income Quarterly Chart

JPM Net Income Quarterly data by YCharts

The results
The public-relations fiasco surrounding the Whale scandal absolutely pained shareholders, but that pain was short-term. Fundamentally, JPMorgan is still a very strong, high-performing bank, as its stock performance reveals. Since 2008, JPMorgan's stock has outperformed the Dow Jones U.S. Financial Sector Index by 37%.

JPM Chart

JPM data by YCharts

The results are similar if we narrow the comparison to JPMorgan's peer group of only the largest U.S. banks. JPMorgan's stock easily outperforms Bank of America and Citigroup. Wells Fargo has been widely applauded of late, but since Dimon became CEO, JPMorgan has beaten Wells in the markets by 7%.

JPM Chart

JPM data by YCharts

Jamie Dimon's style -- aggressive, confident, and brash -- probably opened him up to outsized, and mostly warranted, criticism when the London Whale scandal hit the nightly news. No one is infallible, Dimon included.

Still, JPMorgan shareholders voted correctly to keep him as both CEO and chairman. Dimon's tenure has seen the near-collapse of the financial system and is currently working through the largest overhaul of financial regulation in 80 years. But through it all, the bank's performance has been exemplary. Jamie Dimon has earned the responsibility to fill both those spots in JPMorgan's top ranks.

Fool contributor Jay Jenkins has no position in any stocks mentioned. The Motley Fool recommends Wells Fargo and owns shares of Bank of America, Citigroup, JPMorgan Chase, and Wells Fargo. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.