http://www.choisser.com/longhair/rajsingh.html

Long article, close to 6k words.

It examines why the modern corporate world requires it's business men to shave and cut their hair short.

Here's an excerpt; the conclusion:

Those in power have required their man-servants to emasculate themselves through cranio-facial hair removal as a demonstration of their submissiveness. As this pseudo-feminine appearance has become more and more associated with respected and valued male participation in the national economy, the powered males have become motivated to emulate the very appearance of subservience from which members of their class had historically sought disassociation. As a result, we find ourselves in a society where men commonly, and unthinkingly, deny both their manhood and personal autonomy by daily face scraping and cranial hair mutilation. (A man's quasi-voluntary submission to social dictates cannot rationally be seen to vitiate the position that our society's male hair expectations are unacceptably oppressive.) Those few men remaining who have the wherewithal to present with uncompromised facial and cranial hair can be recognized as being relatively masterful of their own lives and valued as such, but only if they are able to otherwise indicate a high socio-economic status.