It's my observation that industry in general and technology in particular is dominated by a kind of group think that makes certain 'ideas' unassailable once they've reach a certain level of critical mass from the crunchocracy, irrespective of their objective merits.

Roughly: I think most organisations would be better served with a culture that encourages less inhibition, less self censorship and more encouragement of brainstorming ideas, and a much more rigorous critical, analytical investigation of ideas before accepting them.