According to A Perfect Mess [1], the book by Eric Abrahamson and David H. Freedman, having a messy workspace can actually increase efficiency and flexibility [2], and company heads usually are messy! It's an interesting argument, but I'm not sure whether I'm a believer.
Source [3]
Links:
[1] http://www.amazon.com/Perfect-Mess-Disorder-How-Cluttered-Fly/dp/0316114758/ref=pd_bbs_sr_1/103-0334287-6842256?ie=UTF8&s=books&qid=1190658104&sr=8-1
[2] http://msn.careerbuilder.com/custom/msn/careeradvice/viewarticle.aspx?articleid=1011&SiteId=cbmsnhp41011&sc_extcmp=JS_1011_home1>1=9965&cbRecursionCnt=2&cbsid=d8c043e68a964f1a8365f233d74f7eed-243958650-JG-5
[3] http://creative.gettyimages.com