In summary, stainless steel does not rust because it is sufficiently reactive to protect itself from further attack by forming a passive corrosion product layer. (Other important metals such as titanium and aluminum also rely on passive film formation for their corrosion resistance.)
White Collar. White-collar workers usually perform job duties in an office setting. They are highly skilled and formally trained professionals. Many white-collar workers, such as accountants, bankers, attorneys and real estate agents, provide professional services to clients.
Definition: A person hired to do work for another but who is not an employee or agent of that person. Control is subjected to the end result and not as to how the work is performed as opposed to an employee who receives direction on what, when and, to some degree, how to do a job.