Your site touts that you're "Technologists, not bankers". People entrusting you with thousands of dollars of their savings might want some actual bankers involved in the operation. Something like "Security first" might get the point across without raising as many red flags.
As far as marketing goes, I'm not so sure that bankers hold more public trust than techies. It's basically every day a big bank is getting fined as the "cost of doing business" and often for things like laundering money etc.. There's probably a case to be made that techies do more to harm their trust, but probably not from multinational organizations.
