I had originally typed the Pinto as the example, but changed it after thinking the memo in question was related to the Nader book. Regardless, the point still stands. From your link:
“The general misunderstanding of the document, as presented by Mother Jones, gave it an operational significance it never had” and that the memo
“explains in part of his Mother Jones article that Ford employees wrote this document as part of an ongoing lobbying effort to influence NHTSA (24, 28). But his readers have relied exclusively on his other claim, that it was the "internal" (20, 24) memo on which Ford based its decision to market the dangerous Pinto and settle the few inevitable lawsuits”
That’s what I meant by it not translating to actual policy.
“The general misunderstanding of the document, as presented by Mother Jones, gave it an operational significance it never had” and that the memo
“explains in part of his Mother Jones article that Ford employees wrote this document as part of an ongoing lobbying effort to influence NHTSA (24, 28). But his readers have relied exclusively on his other claim, that it was the "internal" (20, 24) memo on which Ford based its decision to market the dangerous Pinto and settle the few inevitable lawsuits”
That’s what I meant by it not translating to actual policy.