I remember sometime in 2003 when Martha Karua was minister for water and she allocated Kshs 600m or thereabouts (cant recall the exact amount but it was a huge amount) to water projects in Nyeri. At the same time she allocated Ksh 10m for water in Turkana. There was quite a furore over this and when asked the rationale of allocating such a huge amount to what is essentially a wet district, she retorted '' the people of Nyeri are also Kenyans and deserve water''
Ngilu is just following the script that is Kibaki's government. Once you become a minister, you immediately employ your cronies at key parastatals, if there is an existing parastatal chief, then suspend the guy under the guise of a corruption investigation, ensure that all development funds for the ministry are chanelled to your area, make sure that it is your time to 'eat' voraciously, Etc. BTW I am not saying what she did is acceptable, its just the way things are.
Great men are not always wise, neither do the aged understand judgement...