These reward you with greater chunks of experience and money, as well as flesh out the world and its characters. (nintendowire.com)
Perhaps it helped that these regions have French names though great chunks of them are along the South coast? (conservativehome.blogs.com)
Even if they join your group, you only have to deal with them for brief periods of time, so why bother putting forth great chunks of time on them? (sciencemag.org)