> Running a government requires a lot of cash flow. I think its sort of inevitable that it's going to need to start coming mostly from the later and not the former.

Why presume that "running a government" is inevitable at all? How much longer do we think these states of old are going to putter on for?

Governments are inevitable. Even when you look at so-called "lawless places" or "failed states", you'll find governments: de-facto governments run by warlords and criminals.

Nature abhors a vacuum and that principle extends to power vacuums.