The state Legislature is considering a bill to revoke Vernon's city charter, saying its lack of citizenry has led to decades of corruption. But business owners say that Vernon's single-minded focus on commerce has been a key to their success.Basque merchant John Leonis helped establish the city of Vernon 106 years ago to cater exclusively to business, figuring that people wouldn't want to put up with the stench and bustle of slaughterhouses, factories and meatpacking plants.