No one would want to be a zombie since that would take all the things precious to them into drain. But, for the creators of the virus, it would mean more money since they would get paid for the damage they have done in one country. These researches would be funded by the leftist as they are the ones that want trouble. In this game, you need to infect lots of people. If possible, you need to infect all of them for you to destroy a town. You need to do it over and over till you destroy the country. You get paid for doing that and you can use the money to make more research.