There is absolutely nothing wrong with a business run by natural persons, like sole proprieterships and partnerships having say in governmnet. Folks seem to be confusing the current corporate landscape with capitalism and doing business.
Corporate personhood is the problem. The moochers and looters have taken over the corps and the government. They are able to influence the government, directing monies and favors toward them.
As far as First Amendment rights for corporations go... We do not have "Constitutional rights". People (natural persons) " are endowed by their Creator with certain unalienable Rights..." How can a legal person created by the government have god given rights? The constitution works much like a trust in that it sets up and restricts the government from imposing on our god given rights. When is the last time a corporation did time for a crime? More than likely it filed bankruptcy to shrug all civil liabilities or just keeps fighting lawsuits in court till they die on the vine.
Corporations must work to make money for the shareholders, not fulfill it's obligations as good citizens. When they do illegal things, the liability is often ambiguos and always seems to fall on a "lone" worker, when it is obvious that more people had to have had knowledge.
Go on and pull out your tinfoil hat and make the boogie men go away.