There is nothing evil about multi-national corporations or capitalism. There is however something evil about any institution big or small using it’s wealth and influence to bribe politicians to force/prevent/incentivise/discourage/etc... free people from purchasing one product or service over another. The evil is not in the capitalism (freedom). It is in the government interference(force).
Read this:
The Price of “Capitalism”
http://balintvazsonyi.org/shns/shns100202.html
What is American Corporatism?
http://www.freerepublic.com/focus/f-news/1036236/posts