Influencing government decisions is typically done by lobbying, handing more power to the state by way of smothering them in funds. Yes you might get your pet project some extra attention, but it's likely that the funds you use to accomplish that objective will be used for heinous ends elsewhere. It's much like negotiating with terrorists from a game theoretic perspective.
Other alternatives are massive public awareness campaigns with regards to any given issue, but these appear to be losing potency as it becomes clear that basically everything the state is doing is broken from the perspective of citizens in some way, and they are not much interested in "fixing it" as it is working perfectly from the perspective of political parasites.
The only unalloyed good that can probably be done is financially contributing to improved security and other technological innovations that directly thwart the interests of the state. Doing so more advances the interests of their potential free market competitors than their own however.