Lambie is actually on the ball here. Bitcoin's best use case is illicit transactions. It's a tool to reduce the power states have over their subjects. The overhead involved only makes sense if  you can't rely on a central power to keep people in line.

IOW, if you're fine with how the political process works in your jurisdiction, and see no need to curtail the economic powers of the state, I don't see what good Bitcoin is to you apart from speculating on the price. I doubt it's actually more efficient than VISA all things considered, for example.