Heh, but do you enslave entire worlds in StarCraft 2? I've found that enterprise is like real time strategy games a little bit, there are a lot of things all at the same time that have to be working well for you to be successful, but if you can put your head in the frame of mind that its just a game (or game like) then you can set aside a big chunk of the tension of doing it for real. The Flying Wallendas (high wire act) would have people walk along a tight rope that was 6" above the ground, and then point out that if you could do that you could walk between buildings, it was just not thinking about the 'bad' things that you weren't planning on having happen anyway.

So at some level when you're spending millions of dollars instead of tens of dollars you're still not planning on losing it, but recognize that if you do it will be a problem. And you are working through a checklist and getting stuff done and correcting for unexpected events. Some folks find that really invigorating, others find it completely paralyzing.