60% of the cars Toyota sells in North America are made here.
...from here... Sure, some of that profit goes to Toyota, but do you even begin to understand how many AMERICAN jobs this provides...everything from the factory worker to the guy who delivers pizzas to the board meetings? Not to mention the added tax base. Anyway...
My take on Civ corps:
When looking at ways to spice up the end game, certainly three starting points come to mind 1] What to do with multiple resources a player has but has no need for? 2] What about all those Great People who tend to lose their luster later in the game? 3] What to do with the large bank accounts, in part made possible by things like spreading your religion, etc.?
#1 is sort of like "Yeah, but no big deal." #2 Is along those line, too. #3, though, makes the end game a bit mindless as you can now afford huge armies, AI bribes, etc. Is there no way to tie these loose end together? This is the niche that corporations fill...you can now convert your resources to something you might want or lack, like more production or growth potential. Doing this, though, is going to make using up Great People a little more strategic, and you're going to have to eat up some of that huge bank account. Of course, you now have an incentive to get those extra resources as well...
So a pure warmonger who cares nothing for corps could, in theory, be bested by the player who makes a long-term corp strategy to have better production rates and city sizes in exchange for redundant resources, saved up GPs, and some of their cash flow off the top. Yes, this is a far more subtle approach to world domination, and you can certainly ignore it, but it's likely a bit of heaven for the micro-manager types who found the late game a bit shallow.
Is this an elegant solution? Is it one that necessarily makes good sense vis-a-vis real life? Well, maybe not. The more important question at this point is -- does corporations make the end game more interesting? Frankly, I think we'll need more time for the public to try it before we can be sure.