The value of creative leadership has been established. You need only look at the recent IBM study (Aug 2011), or going back take a look at PwC's 'Global innovation study' of 2000, The Harvard Business review article 'How GE teaches Teams to Lead change' (Jan 2010) or any of the vast number of similar studies.
The question is not: 'is it desirable' but 'how does one create this type of dynamic creative leadership quickly and effectively'?