The answer of affirmative is and should remain devoid of any supporting argument which fails to account for the lack of accountability present in the current legal code for corporations that commit crimes on a level equal to or greater than those committed by individual (actual) persons, who do not receive equal or greater punishment under the law.
If the activities of a corporation can be directly connected to the death of one or more people, and receive no proportionate punishment (ie lose the right to continue doing business), then there can be no justification for granting all the benefits of personhood (leaving aside all responsibilities).
It would be untrue to claim that corporations are people, this is due to fact people have an sense of society and values, rather than our motives being driven by profit, for the most part people motives are driven by a sense of right and wrong. This can be demonstrated by the fact people pay their taxes.
The movie "The corporation" concerns this topic in full detail. If a corporation was a person, they'd be considered psychotic beyond belief. For example, take Wal-mart, superstitions say that some franchises deliberately put out secret life insurances on people with health problems like diabetes, being over weight, and many more. Can this be proved? No. Do I doubt it? No. Technically, a law concerning corporations, I don't know it in particular, stated that corporations aren't a person as a singular, but a whole; this not allowing a person to sue a particular person. Shortly put, corporations as a whole are psychotic, as singular aren't; they are made up of people but not of people.