according to James Allen, congressional members John Bingham (prominent railroad lawyer) and Roscoe Conkling (successful corporate counsel) deliberately framed the wording of the "due process" clause to protect corporations...
Allen indicates that the meaning was not generally realized at the time, but he notes that Bingham and Conkling, both members of the Committee on Reconstruction, eventually went public with their admissions, the former in a congressional speech and the latter while arguing a tax case before the US Supreme Court...
(_Reconstruction: The Battle for Democracy_, Int'l Pub., 1937, pp. 83-84)
Michael Hoover