So, if you are a citizen you should have access to politicians, but if you start a company or get promoted to an executive position you suddenly get that access revoked?
It would be pretty difficult to restrict lobbying without running into problems with the First Amendment.
Most people who complain about corporate lobbying don't seem to mind when the EFF or the ACLU engages in lobbying, which indicates to me that they are really against corporate power, not lobbying per se.