Southern Bancorp has completed several acquisitions since the financial crisis, but the biggest bank it bought had just $211 million in assets. Those acquisitions have largely focused on rural markets in Arkansas and Mississippi. CEO Darrin Williams sees no reason to alter that strategy after bringing in almost $18 million in fresh capital. Southern plans to keep scooping up banks that target largely underserved populations. “We want to be profitable but with a purpose,” Williams said. “We talk about riding a bicycle. The front wheel is our mission, while the back wheel pushes us forward. No margin, no mission.”