I thought this a really useful real world example: http://www.infoworld.com/d/architecture/lesson-meltdown-listen-your-architects-806?source=IFWNLE_nlt_blogs_2009-07-20
Fighting the good fight, and losing the war - because internal internal competition militates against success.
Internecine inertia and the desire to avoid the identification of common-denominators - because the silos of activity are happy being silos.
Planner and architects see the benefit, but what did those within each department have to gain - compensation models don' reward enterprise players.
Large enterprise software vendors are complicit (IBM, Oracle, HP) i.e. the benefit in having things commodified (anything really). They want to lock you into a proprietary stack, even though it's impossible to adopt the same homogeneous stack across a very large