Separation of Business and State

In light of the imminent Supreme Court decision on Citizens United v. Federal Elections Commission, a free speech case that stands to gut election law, I found myself agitated over the lack of a clause in the Constitution forbidding corporatocracy--we have separation of church and state. Given the incredible foresight of our Founding Fathers, I find it hard to believe that they wouldn't include something like this if they were around today.