The Wife of Bath appears to indicate that women want it all. She certainly does. And she has no hesitation in projecting her own wishes, wants, and desires onto the rest of womankind.
Sovereignty only has meaning if it's exercised over others. In this case, that means men. By the same token, autonomy means the freedom to live your life the way you want to, irrespective of what other people think. And again, it's freedom from men's wishes and desires that seems to be pertinent here.
In medieval England, sovereignty and autonomy were held to be the exclusive preserve of men, so we can see how radical the Wife of Bath's notions really are. What she's advocating is nothing less than a complete role reversal within male-female relationships.