All we can really do is make sure that technology, and knowledge about it, is more evenly distributed, so that central control is more difficult: make sure it isn't seen as kind of magic to people that they deem is impossible to understand and out of reach to them. Technology is simply a set of tools and should be regarded as such.
Centralized technologies with easily controlled, single points of failure are by far the most dangerous, and the most attractive for oppression. This is why DRM, for example, is really bad. It lives by obfuscation and being hard and/or undesirable to understand.