It was claimed that immoral behavior in the top works infecting for the lower levels. Recent research by Gijs van Houwelingen shows that this is not always the case. Apparently the attitude of middle management proves to be critical in this process. A video of RSM discovery is included.
MVO Nederland refers to this article: http://www.mvonederland.nl/nieuws/afstand-bewaren-een-middel-om-een-bedrijf-ethisch-te-houden