User blog comment:Peachslice/Stormcloaks and Septims...?/@comment-1080767-20120331185814

They can't afford for that if they're fighting against an entire empire. So much of Skyrim provides support to the Empire, and if the Stormcloaks have no incentive for them to aid them by, they simply won't. And of course a war machine needs resources, much of which needs to be bought. If they become victorious and cause Skyrim to secede, then they will have no more use for the Empire-manufactured Septim, an oxymoronic insult to their culture.