Or your cellphone contract, or apartment lease, or the terms of use for every web site, or End User License Agreements. They're all totally "meeting of the minds" mutually agreed upon between parties of equal power, open to negotiation by skilled end-users... LOL! Most contracts/agreements that end users are subjected to are far from freely negotiable. They are take-it-or-leave-it rule-making written by some company's legal counsel and enforced by the courts. Agree or don't do business with.

I've never been presented with an employment agreement where any of the terms could be negotiated. Salary and benefits? Yes, sometimes. But other terms? No way. I always try, but in every case, you get a stern message from corporate legal basically saying "Sign it unmodified or GTFO." I don't know who these HN Captains of Industry are who negotiate the terms of their employment, but that's the exception, not the rule. Maybe at the VP+ level, these things are negotiable (parties are more equal in power), but at the "5th grunt from the left" level, no way.