Absolutely. It does no good at all to be in the majority if you punt on voting. Ferguson voters have the power to comprehensively repopulate their city government with players more sympathetic to the majority-minority townspeople.
This has to be done with care…many a city has found to its sorrow that scoundrels come in all colors. So it may not be possible to clean house entirely [and] stand up a government that takes care of business and is careful with the peoples’ money, all in one go.