How, and in whose interests ought corporations be governed? Please support answer from following sources, and in text citation and reference

How, and in whose interests ought corporations be governed?  Please support answer from following sources, and in text citation and reference

https://www.youtube.com/watch?v=0LW5kpVtsjU

https://www.youtube.com/watch?v=BRbFTD8mHkc

http://plato.stanford.edu/entries/ethics-business/

http://smallbusiness.chron.com/advantages-ethical-behavior-business-21067.html