It's all the web developers' fault!
Pushing for standards compliance might be a good thing, but not all browsers are created equal. Even if nerdy web developers don't know it, managers should tell them that they live in the real world (that's Planet Earth).
I'm sure that it's sexy and a challenge to eek out every feature of every browser if you're a web developer. Also means that they can rebuild the site every six months, stay in jobs and congratulate themselves on how clever they are.
Think of it this way:-
IE6, Chrome, Nokia and webTV compliance = sexy & expensive
Simple and works = gran can walk again 'cause spent money on doctor