Madoff: If you earn more cash than your spending limit, you need more game entities, more countries, to gain access to more spending limit. I agree CEOs and peaceful presidents need something to do with their cash as well which is why I kept my advice general in the area of needing some type of fun activity to do with the cash. My suggestions were on the military side, which has the most ready game systems, but there is certainly room for a peaceful suggestion here.
evader23: You need to expand your idea. What is it that we buy with game cash? Who would buy it and why? and, is it fun? Also, what is wrong with the Total War idea? Chime in on that post with comments.